Email marketing can be a powerful tool for healthcare organizations, but it requires careful planning and execution because of HIPAA compliance requirements. In this blog post, we will discuss email marketing best practices to help healthcare marketers achieve their goals.
1. Define Your Campaign Goals
The success of any email marketing campaign depends on the goals you want to achieve. However, because healthcare organizations are often not selling products to their patients, marketers can be confused about how to set measurable goals for their campaigns that aren’t tied to revenue generation.
Healthcare marketers want to use email marketing campaigns for various purposes, including patient engagement, education, and retention. Some possible objectives of your campaigns could be:
New patient acquisition
Re-engaging lapsed patients
Spreading awareness about vaccines, treatments, or medical conditions
Increasing treatment or medication adherence
Collecting survey responses or patient-reported outcomes
All of these campaign objectives will correlate with different metrics. Identifying the campaign goal and the corresponding metrics you need to track is critical before selecting the audience and crafting the content.
2. Select Your Audience
Gone are the days of sending giant email blasts to your entire contact list. The best email marketers are creating highly targeted campaigns for specific audiences. Healthcare marketers using patient data in their audience targeting efforts are at an advantage. They can use patient information to create distinct audience segments. Targeting a patient population with common attributes makes it easier to craft a relevant message to drive clear results. For example, marketers can create more relevant campaigns when they can divide their patient population into subgroups based on shared characteristics like diagnoses, risk factors, and demographic data.
3. Personalize Your Content
Once you have clearly defined your goal and your audience, it’s essential to use personalization techniques to craft relevant messaging. Healthcare consumers expect more personalization from their providers and want to receive messages that tie into their past experiences. Generic, irrelevant messaging is more likely to annoy patients than get them to act. Healthcare marketers are lucky to have a wealth of data points to use in their messaging, but they must be aware of patient privacy and take steps to secure their messaging. When you have taken the appropriate steps to secure patient data, including protected health information in email messages is possible. This improves the patient experience and makes it easier for healthcare marketers to achieve their objectives.
4. Use A Clear Call-to-Action
Your emails should include a clear call-to-action (CTA) that encourages your audience to take the desired action. These actions may include scheduling an appointment, downloading a resource, logging into a patient portal, filling out a survey, or contacting your organization. Ensure that your CTA is prominent, stands out from the rest of your content, and ties back to the goal of your campaign. Most importantly, implement appropriate tracking technologies so you can see how many email recipients followed through on the CTA.
Don’t include too many calls to action in one message! Including multiple prompts may confuse the recipient and make it more difficult for your team to understand how the campaign performed.
5. Review Your Data
Finally, it’s essential to monitor your email metrics to evaluate the success of your campaigns. Some key metrics may include open rates, click-through rates, surveys completed, successful logins, appointments scheduled, and other relevant metrics that tie back to your goals. Use this data to refine your email marketing strategy, trigger follow-up campaigns and marketing activity, and optimize future campaigns. Use APIs or webhooks to ensure your email campaign statistics are tied into marketing dashboards to get a holistic view of how your campaigns are performing.
6. Choose an Email Marketing Platform Designed for Healthcare
Finally, to use the tactics recommended above, it’s necessary to use a HIPAA-compliant email marketing platform. Segmenting audiences and personalizing content requires the use of protected health information. Therefore, it must be secured in compliance with HIPAA. You must select a platform that can protect data both at rest and in transit to utilize the power of your data fully.
LuxSci’s HIPAA-compliant Secure Marketing was designed to meet the needs of healthcare marketers and enables the use of PHI at scale. Contact our sales team to learn more about our capabilities and email marketing best practices.
Pete Wermter
As a marketing leader with more than 20 years of experience in enterprise software marketing, Pete's career includes a mix of corporate and field marketing roles, stretching from Silicon Valley to the EMEA and APAC regions, with a focus on data protection and optimizing engagement for regulated industries, such as healthcare and financial services.
Pete Wermter — LinkedIn
Secure email is not the same as “email with encryption turned on.” True secure email requires enforced automated encryption, a signed BAA, access controls, audit logs, and documented processes — not just a feature toggle.
Standard email platforms like Gmail and Microsoft 365 rely on opportunistic TLS by default, which can silently fall back to unencrypted delivery if the recipient’s server doesn’t support encryption.
HIPAA’s encryption safe harbor means a misdirected but properly encrypted email is a non-event. The same email sent unencrypted is a presumed breach unless a risk assessment shows otherwise.
A signed Business Associate Agreement (BAA) with your email provider is non-negotiable — without one, you cannot legally send or store PHI through that provider.
The proposed 2025 HIPAA Security Rule update, planned for finalization in 2027, would make encryption of ePHI in transit and at rest a mandatory requirement rather than “addressable,” raising the stakes for organizations still relying on opportunistic TLS.
Best for: Healthcare IT Directors, Compliance Officers, Privacy Officers, and Marketing Managers at provider, payer, and supplier organizations that handle protected health information (PHI).
In healthcare IT, the term “secure email” gets thrown around loosely. Vendors slap the label on anything with a padlock icon, and internal teams often assume that because their provider offers TLS, they’re covered. They’re not, and the gap between what’s assumed and what’s actually required is where data breaches occur and HIPAA violations happen.
This guide breaks down exactly what secure email means from a technical and regulatory standpoint, why the email platform your staff uses every day probably isn’t compliant out of the box, and what to look for when evaluating a provider that needs to protect PHI at scale. If you want the full picture of what compliance requires beyond email specifically, our HIPAA Compliance Checklist is a useful companion read.
What Is Secure Email?
Secure email refers to an email system that protects the confidentiality, integrity, and availability of message content — specifically PHI — through a combination of technical safeguards and contractual protections. It’s not a single feature. It’s a stack of controls working together.
At minimum, secure email in a healthcare context includes:
Enforced encryption in transit, so messages can’t fall back to plaintext delivery
Encryption at rest, so stored messages remain protected on the server
Authentication protocols (SPF, DKIM, DMARC) that prevent spoofing and impersonation
Access controls and audit logs that track who accessed what, and when
A signed Business Associate Agreement (BAA) with the email provider
The distinction that trips up most organizations is this: encryption is a component of secure email, not the whole picture. A provider can offer encryption and still fail to meet HIPAA requirements if that encryption isn’t enforced, if there’s no BAA in place, or if audit logging doesn’t exist. Secure email is the combination of all these pieces functioning as a system, which is why it needs to be evaluated holistically rather than checked off feature by feature.
For healthcare provider, payer, and supplier organizations, this matters because email remains one of the highest-volume channels for PHI exposure, from clinical referrals to patient billing statements to routine staff communication. Getting the definition right is the first step toward closing the compliance gap.
Why Standard Email Is Not HIPAA-Compliant
Many healthcare organizations run on Gmail (Google Workspace) or Microsoft 365, and most assume they’re protected because encryption exists somewhere in the stack. That assumption is the single most common — and most dangerous — misconception in healthcare email security.
Here’s the problem: standard email services use opportunistic TLS by default. TLS is attempted between mail servers, but if the receiving server doesn’t support it, the message is delivered anyway — unencrypted, in plaintext. Neither the sender nor the recipient typically sees a warning. The email just goes through.
This isn’t a hypothetical edge case. IT professionals managing healthcare email infrastructure have flagged this exact issue directly: opportunistic TLS is often enabled by default and creates a false sense of security, since it offers no guarantee that a given message, including one containing PHI, won’t be transmitted in plaintext if the recipient’s mail server doesn’t support encryption. Organizations assume they’re protected simply because TLS is technically “on,” without realizing it isn’t enforced.
That gap has real consequences under HIPAA. The Security Rule currently treats transmission encryption as an “addressable” safeguard, meaning covered entities can, in theory, implement an equivalent alternative measure instead. In practice, regulators and auditors from the Office for Civil Rights (OCR) expect enforced encryption as the standard of care. “Addressable” has never meant optional — it means an organization needs a documented, defensible reason if it isn’t doing enforced encryption, and few reasons hold up under scrutiny. Finally, under OCR’s proposed changes to the HIPAA Security Rule for ePHI, scheduled for final publication in July 2027, email encryption moves from addressable to mandatory.
Beyond the encryption gap, standard consumer and even most business email plans typically lack:
A BAA that’s actually offered and signed (available on some enterprise tiers, but not automatic)
Audit logging sufficient to meet HIPAA Security Rule requirements
Built-in encryption at rest guarantees for stored messages
None of this means Gmail or Microsoft 365 are inherently insecure products. It means their default configuration is built for general business use, not for an environment where every misrouted or intercepted message carries breach notification liability. Making either platform HIPAA-appropriate requires layering on additional tools, policies, and critically, a provider relationship that includes a signed BAA covering the exact services in use.
The Technical Components of Secure Email
Secure email is built upon five technical layers. Understanding each one, and where it fails in standard email, clarifies exactly what a compliant solution needs to deliver.
Encryption in Transit (TLS)
Transport Layer Security (TLS) encrypts the connection between mail servers as a message travels from sender to recipient. There are two flavors, and the difference between them is the crux of most healthcare email compliance failures:
Opportunistic TLS attempts an encrypted connection but falls back to unencrypted delivery if the receiving server doesn’t support it. This is the default across most consumer and business email platforms.
Enforced TLS requires an encrypted connection for delivery to succeed. If encryption can’t be established, the message fails to send rather than going out in plaintext, or a link to secure portal can be sent to securely access the information.
HIPAA’s Security Rule lists encryption as addressable, but enforced TLS has become the de facto standard that auditors and OCR expect from covered entities and business associates handling PHI over email. As one healthcare IT professional put it while debating this exact tradeoff internally: the goal is to require TLS for all outbound email and then document the remaining controls around it, treating enforced TLS as the technical baseline, with policy and process built on top.
Encryption at Rest
Transit encryption only protects a message while it’s moving. Once it lands on a mail server — sender’s outbox, recipient’s inbox, backups, archives — it needs to remain encrypted in storage. This is encryption at rest, and it’s where many organizations underestimate their exposure.
Encryption in transit alone offers zero control over a message after it’s been delivered. If the destination server isn’t itself encrypting stored data, or if a backup snapshot is taken without encryption, PHI sitting in an inbox is exposed regardless of how securely it arrived. HIPAA’s Security Rule requires safeguards for ePHI both in transit and at rest, a compliant secure email provider needs to guarantee both, not just one.
End-to-End Encryption (S/MIME, PGP)
End-to-end encryption (E2EE) encrypts message content itself, not just the connection it travels over — meaning even the email provider can’t read the content. Two standards dominate here:
S/MIME uses certificate-based encryption and is common in enterprise environments, such as healthcare, particularly where organizations already manage a public key infrastructure.
PGP (Pretty Good Privacy) uses a public/private key model and is more common in technical or security-conscious communities, though it’s less frequently deployed at scale in healthcare due to key management complexity.
E2EE isn’t a baseline requirement for every PHI-containing email, enforced TLS plus encryption at rest satisfies most use cases. But it becomes necessary for especially sensitive communications, cross-organization data sharing where you don’t control the recipient’s infrastructure, or when a business associate agreement specifically requires it.
Authentication (SPF, DKIM, DMARC)
These three protocols work together to prevent domain spoofing and email impersonation, a growing attack vector against healthcare organizations specifically, given how often phishing campaigns impersonate providers, payers, or patients.
SPF (Sender Policy Framework) specifies which mail servers are authorized to send email on behalf of a domain.
DKIM (DomainKeys Identified Mail) adds a cryptographic signature verifying a message wasn’t altered in transit.
DMARC (Domain-based Message Authentication, Reporting & Conformance) tells receiving servers what to do when SPF or DKIM checks fail, and provides reporting visibility.
Without these configured correctly, an organization’s domain can be spoofed to send convincing phishing emails to patients or staff, creating a security failure that compounds the compliance risk of email interception.
Digital Signatures
Digital signatures verify sender identity and confirm a message hasn’t been tampered with between sending and receipt. Paired with encryption, they close the loop on message integrity, confirming not just that content was protected, but that it came from who it claims to have come from and arrived unaltered.
Standard Email vs. Secure Email: Feature Comparison
Feature
Standard Email
Secure Email (HIPAA-Compliant)
Encryption in Transit
Opportunistic TLS — attempted but not enforced
Enforced TLS — connection fails if encryption unavailable, can include delivery via secure portal option
Encryption at Rest
Not guaranteed; provider-dependent
Required — server-side encryption of stored messages
End-to-End Encryption
Not available
Supported via S/MIME and/or PGP
Digital Signatures
Not available
Included — verifies sender identity and message integrity
Authentication (SPF / DKIM / DMARC)
Optional, rarely enforced
Required — spoofing and impersonation protection
Business Associate Agreement (BAA)
Not provided on standard plans
Required — must be signed before sending PHI
Audit Logs
Basic or none
Full audit trail — required under HIPAA Security Rule
Access Controls
Basic password only
Role-based access, MFA, admin controls
Misdirected Email
Reportable HIPAA breach
Non-reportable if properly encrypted (safe harbor)
HIPAA Compliant by Default
No
Yes
What Makes Email HIPAA-Compliant Specifically
Technical safeguards alone don’t make email HIPAA-compliant. Compliance is a combination of technology, contracts, and documented processes — all four need to be in place simultaneously. This includes:
A signed BAA with your email provider – Any vendor that transmits, processes, or stores PHI on your behalf is a business associate under HIPAA, and business associates are legally required to sign a BAA before handling that data. Email providers have persistent access to ePHI — even end-to-end encrypted messages pass through their infrastructure at some point — which makes this requirement absolute, not situational. If a provider won’t sign a BAA, using them to send or store PHI isn’t a compliance risk you can mitigate; it’s a violation from the start.
Encryption as an addressable safeguard – Under 45 CFR §164.312(e)(2)(ii), the HIPAA Security Rule lists encryption of ePHI in transit as “addressable” rather than strictly “required.” In practice, this doesn’t mean optional, it means an organization must implement it, or document and justify an equivalent alternative safeguard. Enforced encryption has become the expected standard, and with the newly proposed HIPAA Security Rule planned for July 2027 publication, NPRM would formalize that expectation by making encryption of ePHI in transit and at rest mandatory rather than addressable. Organizations still relying on opportunistic TLS as their “equivalent alternative” should treat this as a closing window.
Access controls and audit logs – HIPAA requires the ability to track who accessed PHI, when, and what they did with it. This means role-based access permissions, multi-factor authentication, and a complete, retained audit trail — not just for compliance reporting, but for identifying and responding to incidents quickly.
The encryption safe harbor – This is one of the most consequential, and most underused, provisions in HIPAA. If PHI is sent via properly encrypted email and ends up misdirected to the wrong recipient, it is not a reportable breach under the Breach Notification Rule, because the encrypted content is considered unreadable and therefore not “unsecured PHI.” The exact same misdirection with unencrypted email is a reportable breach, triggering notification obligations to the individual and to HHS/OCR. Encryption isn’t just a security best practice here, it’s the line between a non-event and a formal breach investigation.
HITRUST certification as a trust signal – When evaluating vendors, HITRUST CSF certification is a strong external indicator that a provider’s security controls have been independently assessed against a recognized healthcare-specific framework. It’s not a HIPAA requirement in itself, but it meaningfully reduces the diligence burden on your side when vetting a provider.
Types of Healthcare Email That Must Be Secure
Not all internal debate here is about “should we secure email” — it’s about scope. Which specific email flows actually carry PHI, and therefore need to run through a compliant channel? In practice, the answer is broader than most teams initially assume.
The common thread: if a message references anything that could identify a patient in connection with health information — a name next to a diagnosis, an account number tied to a service date, an annual test reminder — it needs to move through a secure channel, regardless of whether it’s clinical, financial, or administrative in nature.
How to Evaluate a Secure Email Provider for Healthcare
Vendor evaluation in this category tends to go one of two ways: teams either take a provider’s “HIPAA-compliant” label at face value, or they get buried in RFP questions without knowing which answers actually matter. Ask these key questiosn to focus the evaluation on what’s operationally and legally significant.
“Does the provider sign a BAA? This is the first filter, not the last. If a vendor won’t sign a BAA — or offers a heavily limited one — everything else is irrelevant. Some organizations go a step further and negotiate indemnity or make-whole clauses into the BAA itself, seeking financial protection beyond the baseline liability allocation.
What encryption methods are supported? Confirm specifically whether the provider offers TLS only, or also supports S/MIME and/or PGP for end-to-end encryption where needed. TLS-only coverage is sufficient for most standard PHI communication; organizations with cross-border data sharing or especially sensitive use cases may need E2EE options available.
Is encryption enforced or opportunistic? This is the single most important technical question to ask directly, in those terms. A vendor that describes its encryption vaguely, without distinguishing enforced from opportunistic delivery, hasn’t answered the question. Push for specifics.
How are large attachments handled? Lab results, imaging files, and clinical documents often exceed standard attachment size limits. Confirm the provider has a secure, compliant method for large file transfer that doesn’t force users onto an unencrypted workaround.
What audit logging and reporting capabilities exist? You need visibility into delivery, access, and any failed encryption attempts, not just a generic sent/received log. Ask whether logs are retained for a period consistent with your organization’s HIPAA documentation requirements.
Do they support high-volume transactional email? Appointment reminders, billing notices, and patient communications at scale require infrastructure built for volume without sacrificing per-message compliance. Confirm the provider’s platform is built for this your specific pattern, not just person-to-person messaging.
Is the platform US-based with US data residency? For many healthcare organizations, where data physically resides — and under which jurisdiction — is a material factor in vendor risk assessment, particularly for payers and larger provider organizations with strict data governance policies.”
One operational factor worth weighing alongside these questions: secure email portals — the kind that require recipients to click through to a separate web page to read a message — solve the encryption problem but often create a real adoption problem. IT teams have reported a direct conflict between phishing-awareness training and portal-based workflows: staff and patients trained not to click suspicious links in emails are, understandably, reluctant to click the “secure link” a portal email contains. This is a legitimate reason many organizations increasingly prefer platforms that enforce encryption transparently in the background — like LuxSci’s SecureLine encryption technology — rather than routing every message through a separate portal experience.
Secure Email Checklist for Healthcare Organizations
Every safeguard covered in this guide comes down to a handful of concrete, verifiable actions. Use the checklist below as a working reference for what needs to be in place across your legal agreements, technical controls, and internal processes. This is not a one-time setup task, but something worth revisiting as your email volume, vendors, and regulations evolve. Share it across your compliance and IT teams as a starting point for an internal audit.
Legal and Contractual – BAA signed with email provider and all third-party vendors handling PHI.
Encryption – Forced TLS, not opportunistic only for emails in transit and all stored data encrypted with AES-256 bit encryption.
Access and Audit – Unique user IDs, role-based access, and login monitoring with advanced MFA enabled for all email accounts; audit logs active and maintained.
People and Processes – Staff trained in PHI handling, established breach response plan, annual email security policy review.
What Should I Do Now?
Secure email isn’t a single setting you switch on — it’s a combination of enforced encryption, a signed BAA, access controls, and documented process working together. Get any one piece wrong, and the rest doesn’t hold up under an OCR audit or a breach investigation.
If your organization is still relying on opportunistic TLS, an unsigned or incomplete BAA, or a patchwork of workarounds to move PHI through email, now is the time to close that gap, especially with the proposed 2025 HIPAA Security Rule update poised to make encryption a mandatory requirement rather than an addressable one in 2027.
Below are three ways you can continue your journey to securing your healthcare email:
Email can be HIPAA compliant, but only when the right safeguards are in place — enforced encryption, a signed BAA with your email provider, access controls, audit logs, and staff training on PHI handling. Standard email without these safeguards is not compliant.
2. Do I need to sign a BAA with my email provider?
Yes. Email providers have persistent access to ePHI — even encrypted messages pass through their servers — making them Business Associates under HIPAA. A signed BAA is required. If your provider won’t sign one, you cannot legally use them to send or store PHI.
3. What is the difference between opportunistic TLS and enforced TLS — and which does HIPAA require?
Opportunistic TLS attempts encryption but falls back to plaintext if the recipient’s server doesn’t support it. Enforced TLS stops delivery rather than sending unencrypted. HIPAA’s Security Rule treats transmission encryption as an addressable specification, in practice, enforced TLS is the standard auditors and OCR expect. The proposed 2025 HIPAA Security Rule NPRM would make encryption of ePHI in transit a mandatory requirement in 2027.
4. What happens if I send PHI in an unencrypted email?
It is an impermissible disclosure under HIPAA’s Privacy Rule and triggers the Breach Notification Rule, requiring you to notify the individual and HHS/OCR within 60 days. Penalties range from $100 to $50,000 per violation. Had the email been properly encrypted, the same incident would qualify for HIPAA’s encryption safe harbor, meaning no notification required.
5. Is Gmail or Microsoft 365 HIPAA compliant for sending patient emails?
Neither is compliant in their default configuration. Both use opportunistic TLS, meaning PHI can be sent in plaintext if the recipient’s server doesn’t support encryption. A signed BAA is available on enterprise plans but doesn’t close the technical gap alone. A purpose-built HIPAA-compliant email platform is the reliable solution.
If you’ve been waiting for the final word on the new HIPAA Security Rule before you touch your email encryption strategy, you now have an official reason to keep waiting.
Our advice: Don’t do it.
What is the new HIPAA Security Rule for ePHI?
The Department of Health and Human Services’ Office for Civil Rights had targeted May 2026 for a final rule implementing the most significant update to the HIPAA Security Rule in over two decades. The proposal eliminates the “addressable” standard and makes encryption of ePHI in transit and at rest mandatory for every covered entity and business associate. That deadline came and went quietly. Now we know why: an updated federal regulatory agenda shows OCR’s timeline has moved to July 2027, with the rule-making downgraded from “final rule stage” to “long-term action.” OCR is still working through more than 4,700 public comments on the January 2025 proposal.
For an industry that had been expecting a tighter deadline, a year-plus delay is the kind of news that invites a collective exhale — and a shelved project plan. At LuxSci, we think that would be a mistake, for three reasons:
The current rule already requires you to address encryption. “Addressable” was never “optional.” It has always meant you must implement the safeguard, implement an equivalent alternative, or document in writing why neither is reasonable for your organization. Most healthcare organizations have never done that documentation rigorously, and OCR’s existing enforcement authority applies today, not in 2027.
Breach costs haven’t waited for the rule.IBM’s 2025 Cost of a Data Breach Report puts the average healthcare breach at $7.42 million, still the highest of any industry. At the same time, email remains the number one attack vector into healthcare organizations. None of that risk is paused by a regulatory delay.
Delay is not withdrawal.OCR has not signaled it’s abandoning the encryption mandate, only that it’s taking longer to finalize it. Organizations that build now toward the standard already proposed will be ahead (and more secure) regardless of exactly when, or in what final form, the rule lands. Organizations that wait risk a compressed scramble once it does.
What should healthcare IT and compliance leaders actually do with this news?
Reevaluate your ePHI security posture, recalibrate its urgency, and use the extra runway to do the job right, instead of racing against a deadline. This includes:
Getting a real inventory of where ePHI moves by email today, inbound and outbound, and where encryption is inconsistent or absent.
Closing the documentation gap on “addressable” now, while you have time to do it well rather than defensively.
Pushing your email vendor for concrete answers on encryption standards, MFA enforcement, audit logging, and breach notification — the same technical controls the proposed rule would make mandatory.
Building (or updating) a written, enforcement-ready posture: policies, vendor agreements, certifications and verifications, test results, and training records that would hold up under an OCR investigation today, not just in a future compliance deadline.
Get LuxSci’s new Definitive Guide on the new HIPAA Security Rule
From Addressable to Mandatory: Email Encryption Under the New HIPAA Security Rule provides the latest update on the rule, what it means for healthcare email encryption, and what you can do now to properly prepare for what’s coming in 2027. The guide also includes an interactive scorecard that lets you evaluate your current email set up and vendor across seven security and compliance dimensions in under two minutes, no email address required.
If you want a second set of eyes on where your organization stands, our team offers a free 30-minute compliance assessment of your current email environment against the proposed rule’s requirements.
Most healthcare organizations view email as a utility, a necessary tool for sending messages between staff, communicating with patients, sending out newsletters, connecting workflows, and so on. Historically, IT teams focused on keeping it running, security teams worried about phishing, and compliance teams made sure sensitive emails were encrypted.
Today, however, that view is rapidly becoming outdated.
Email has evolved into one of healthcare’s most critical digital infrastructure components, and also one of it’s biggest security threats. It’s a core channel for patient engagement, care coordination, revenue cycle operations, digital marketing, remote monitoring, and increasingly, AI-powered communications. The organizations that recognize this shift are building communications platforms designed for security, performance, automation, and growth. With the new HIPAA Security Rule requiring email encryption on the horizon, those companies that don’t may find themselves constrained by systems that were never intended to support modern healthcare.
Email Is No Longer Just a Messaging Tool
Healthcare organizations now depend on email to support dozens of mission-critical workflows every day.
Patients receive appointment reminders, registration instructions, imaging results, billing notifications, Explanation of Benefits (EOBs), prescription updates, preventive care reminders, patient education, and post-discharge follow-up. Marketing teams deliver personalized wellness campaigns and service line promotions. Clinical systems generate transactional notifications. Revenue cycle teams rely on secure digital communications to accelerate payments and reduce paper costs.
For many organizations, mission-critical patient communications flow through email every month.
When viewed collectively, email is more than a simple communications channel. It has become operational infrastructure with high levels of security needed and increasing compliance requirements.
The Stakes Continue to Rise
As healthcare becomes more digital, every communication carries greater business and clinical importance.
A delayed billing email may postpone payment. A failed appointment reminder can increase no-show rates. An undelivered care management message may impact patient outcomes. A misconfigured security policy can expose protected health information (PHI). Poor deliverability can undermine expensive patient engagement initiatives before they ever reach the inbox.
These are no longer isolated IT issues. Email can affect revenue, patient satisfaction, operational efficiency, compliance, and organizational reputation.
Today’s healthcare leaders require email infrastructure to provide the same reliability and visibility they demand from electronic health records, identity management systems, and other core infrastructure.
AI Is Raising the Bar Even Higher
There’s little doubt that artificial intelligence (AI) promises to transform patient communications.
Healthcare organizations everywhere are exploring AI-generated patient education, personalized outreach, intelligent scheduling, multilingual communications, and automated follow-up programs.
But AI also increases the importance of the underlying communications infrastructure.
Generating more personalized emails means little if organizations cannot:
Automatically protect PHI.
Apply consistent security policies.
Maintain complete audit trails.
Deliver messages reliably.
Integrate with EHRs, RCM and CRM platforms, and customer data platforms.
Demonstrate compliance during an audits.
In many ways, AI amplifies both the opportunities and the risks. Your email platform can help determine whether AI initiatives succeed or create new compliance and operational challenges.
Infrastructure Matters More Than Features
Healthcare buyers have traditionally evaluated email platforms based on individual features such as encryption, spam filtering, or secure portals.
Those capabilities remain important, but they no longer tell the whole story.
Today’s healthcare organizations should be evaluating communications platforms the same way they evaluate any mission-critical infrastructure.
Questions increasingly include:
Can it support both transactional and marketing communications?
Does it automatically enforce security policies without relying on user decisions?
Can it integrate with EHRs, CRM systems, CDPs, and business applications?
Will it scale during peak communication periods?
Does it provide detailed audit logging and reporting?
Can it adapt as regulatory expectations evolve?
Does it maintain high deliverability at enterprise scale?
Does it support single-tenant dedicated infrastructure for high performance and increased security?
These infrastructure characteristics often determine long-term success far more than any single feature comparison.
Email and the Future Of Secure Healthcare Communications
Healthcare is steadily moving toward a world where nearly every patient interaction is digital, personalized, and data-driven.
Healthcare leaders often ask whether they need a more secure email solution. That may be the wrong question.
The better question is whether their communications infrastructure is ready for where healthcare is headed over the next decade.
If you want talk about the future of your healthcare email infrastructure, reach out today and schedule a 30-minute assessment call with our experts.
Due to its near-universal adoption, speed, and cost-effectiveness, email remains one of the most common communication channels in healthcare. Consequently, it’s one of the most frequent targets for cyber attacks, as malicious actors are acutely aware of the vast amounts of sensitive data contained in messages – and standard email communication’s inherent vulnerabilities.
In light of this, healthcare organizations must remain aware of the evolving email threat landscape, and implement effective strategies to protect the electronic protected health information (ePHI) included in email messages. Failing to properly secure email communications jeopardizes patient data privacy, which can disrupt operations, result in costly HIPAA compliance violations, and, most importantly, compromise the quality of their patients’ healthcare provision.
With all this in mind, this post details the biggest email threats faced by healthcare organizations today, with the greatest potential to cause your business or practice harm by compromising patient and company data. You can also get our 2025 report on the latest email threats, which includes strategies on how to overcome them.
Ransomware Attacks
Ransomware is a type of malware that encrypts, corrupts, or deletes a healthcare organization’s data or critical systems, and enables the cybercriminals that deployed it to demand a payment (i.e., a ransom) for their restoration. Healthcare personnel can unwittingly download ransomware onto their devices by opening a malicious email attachment or clicking on a link contained in an email.
In recent years, ransomware has emerged as the email security threat with the most significant financial impact. In 2024, for instance, there were over 180 confirmed ransomware attacks with an average paid ransom of nearly $1 million.
Email Client Misconfiguration
While a healthcare organization may implement email security controls, many fail to know the security gaps of their current email service provider (ESP) or understand the value of a HIPAA compliant email platform, leaving data vulnerable to email threats, such as unauthorized access and ePHI exposure, and also, subsequently, a greater risk of compliance violations and reputation damage.
Common types of email misconfiguration include:
Lack of enforced TLS encryption: resulting in emails being transmitted in plaintext, rendering the patient data they contain readable by cybercriminals in the event of interception during transit.
Improper SPF/DKIM/DMARC setup: failure to configure or align these email authentication protocols correctly gives malicious actors greater latitude to successfully spoof trusted domains.
Disabled or lax user authentication: a lack of authentication measures, such as multi-factor authentication (MFA), increases the risk of unauthorized access and ePHI exposure.
Misconfigured secure email gateways: incorrect rules or filtering policies can allow phishing emails through or block legitimate messages.
Outdated or unsupported email client software: simply neglecting to download and apply the latest updates or patches from the email client’s vendor can leave vulnerabilities, which are well-known to cybercriminals, exposed to attack.
Social Engineering Attacks
A social engineering attack involves a malicious actor deceiving or convincing healthcare employees into granting unauthorized access or exposing patient data. Relying on psychological manipulation, social engineering attacks exploit a person’s trust, urgency, fear, or curiosity, and encompass an assortment of threats, including phishing and business email compromise (BEC) attacks, which are covered in greater depth below.
Phishing
As mentioned above, phishing is a type of social engineering attack, but they are so widespread that it warrants its own mention. Phishing sees malicious actors impersonating legitimate companies, or their employees, to trick victims into revealing sensitive patient data.
Subsequently, healthcare organizations can be subjected to several different types of phishing attacks, which include:
General phishing: otherwise known as bulk phishing or simply ‘phishing’, these are broad, generic attacks where emails are sent to large numbers of recipients, impersonating trusted entities to steal credentials or deliver malware.
Spear phishing: more targeted attacks that involve personalized phishing emails crafted for a specific healthcare organization or individual. These require more research on the part of malicious actors and typically use relevant insider details gleaned from their reconnaissance for additional credibility.
Whaling: a form of spear phishing that specifically targets healthcare executives or other high-level employees.
Clone phishing: when a cybercriminal duplicates a legitimate email that was previously received by the target, replacing links or attachments with malicious ones.
Credential phishing: also known as ‘pharming’, this involves emails that link to fake login pages designed to capture healthcare employees’ usernames and passwords under the guise of frequently used legitimate services.
Domain Impersonation and Spoofing
This category of threat revolves around making malicious messages appear legitimate, which can allow them to bypass basic email security checks. As alluded to above, these attacks exploit weaknesses in email client misconfigurations to trick the recipient, typically to expose and exfiltrate patient data, steal employee credentials, or distribute malware.
Domain spoofing email threats involve altering the “From” address in an email header to make it appear to be from a legitimate domain. If a healthcare organization fails to properly configure authentication protocols like SPF, DKIM, and DMARC, there’s a greater risk of their email servers failing to flag malicious messages and allowing them to land in users’ inboxes.
Domain impersonation, on the other hand, requires cybercriminals to register a domain that closely resembles a legitimate one. This may involve typosquatting, e.g., using “paypa1.com” instead of “paypal.com”. Alternatively, a hacker may utilize a homograph attack, which substitutes visually similar characters, e.g., from different character sets, such as Cyrillic. Malicious actors will then send emails from these fraudulent domains, which often have the ability to bypass basic email filters because they aren’t exact matches for blacklisted domains. Worse still, such emails can appear authentic to users, particularly if the attacker puts in the effort to accurately mimic the branding, formatting, and tone used by the legitimate entity they’re attempting to impersonate.
Insider Email Threats
In addition to external parties, employees within a healthcare organization can pose email threats to the security of its PHI. On one hand, insider threats can be intentional, involving disgruntled employees or third-party personnel abusing their access privileges to steal or corrupt patient data. Alternatively, they could be the result of mere human error or negligence, stemming from ignorance, or even fatigue.
What’s more, insider threats have been exacerbated by the rise of remote and flexible conditions since the onset of the COVID-19 pandemic, which has created more complex IT infrastructures that are more difficult to manage and control.
Business Email Compromise (BEC) Attacks
A BEC attack is a highly targeted type of social engineering attack in which cybercriminals gain access to, or copy, a legitimate email account to impersonate a known and trusted individual within an organization. BEC attacks typically require extensive research on the targeted healthcare company and rely less on malicious links or attachments, unlike phishing, which can make them difficult to detect.
Due to the high volume of emails transmitted within the healthcare industry, and the sensitive nature of PHI often included in communications to patients and between organizations, the healthcare industry is a consistent target of BEC attacks.
BEC attacks come in several forms, such as:
Account compromise: hijacking a real employee’s account and sending fraudulent messages.
Executive fraud: impersonating high-ranking personnel to request urgent financial transactions or access to sensitive data.
Invoice fraud: pretending to be a vendor asking for the payment of a fraudulent invoice into an account under their control.
Supply Chain Risk
Healthcare organizations increasingly rely on third-party vendors, including cloud service providers, software vendors, and billing or payment providers to serve their patients and customers. They constantly communicate with their supply chain partners via email, with some messages containing sensitive patient data; moreover, some of these organizations will have various levels of access to the PHI under their care.
Consequently, undetected vulnerabilities or lax security practices within your supply chain network could serve as entry points for email threats and malicious action. For instance, cybercriminals can compromise the email servers of a healthcare company’s third-party vendor or partner, and then send fraudulent emails from their domains to deploy malware or extract patient data.
Another, somewhat harrowing, way to understand supply chain risk is that while your organization may have a robust email security posture, in reality, it’s only as strong as that of your weakest third-party vendor’s security controls.
You’ll also learn about the upcoming changes to the HIPAA Security Rule and how it’s set to impact your organization going forward, and the most effective strategies for strengthening your email security posture.
Grab your copy of the report here and begin the journey to strengthening your company’s email threat readiness today.
HIPAA compliant hosting requirements include administrative policies for workforce training and access management, physical controls for data center security and equipment protection, and information protections for data encryption, access controls, and audit logging. Healthcare organizations using hosting services must ensure providers implement appropriate business associate agreements, security measures, and compliance documentation that meet Privacy and Security Rule obligations for protecting electronic PHI. Healthcare organizations increasingly rely on cloud hosting and managed services to support their operations while reducing internal IT infrastructure costs. Outsourcing hosting responsibilities does not eliminate HIPAA compliant hosting requirements, requiring careful vendor selection and ongoing oversight.
Administrative Protection Standards
Workforce training requirements mandate that hosting providers educate their personnel about HIPAA obligations and PHI handling procedures. All staff with potential access to healthcare client data must understand privacy requirements and security protocols before gaining system access. Access management procedures ensure that hosting provider personnel receive appropriate permissions based on their job responsibilities and healthcare client needs. Role-based access controls limit employee exposure to PHI while enabling necessary system administration and support activities. Security officer designation requires hosting providers to appoint qualified individuals responsible for developing and implementing security policies that protect healthcare client data. Officers must have appropriate authority and expertise to ensure comprehensive compliance across hosting operations.
Data center security controls must protect servers and network equipment from unauthorized physical access through multiple layers of security including perimeter controls, biometric access systems, and surveillance monitoring. These protections help prevent unauthorized individuals from accessing systems containing PHI. Equipment disposal procedures ensure that storage devices and servers containing healthcare client data receive appropriate destruction when they reach end of life. Hosting providers must implement certified data destruction methods that prevent PHI recovery from disposed equipment. Environmental protections including fire suppression, climate control, and power management help ensure that healthcare client data remains available and protected from physical threats. Systems of this nature support business continuity while maintaining data integrity and accessibility.
Control Measures for HIPAA Compliant Hosting Requirements
User authentication systems verify the identity of individuals accessing hosting infrastructure before granting permissions to view or modify healthcare client data. Multi-factor authentication provides additional security layers for privileged access to systems containing PHI. Unique user identification ensures that hosting provider activities can be traced to specific individuals through comprehensive account management and monitoring systems. These controls support accountability and enable investigation of potential security incidents involving healthcare client data. Emergency access procedures provide alternative authentication methods when normal access controls might delay urgent system maintenance or security response activities. These procedures must include enhanced monitoring and documentation requirements to maintain security while enabling necessary operations.
Audit Controls and Activity Monitoring
Comprehensive logging systems capture detailed records of all activities affecting healthcare client data including user access, system modifications, and data transfers. These logs must be protected from unauthorized modification and preserved for appropriate periods to support compliance demonstrations. Regular log analysis helps hosting providers identify unusual activity patterns that might indicate security threats or compliance violations. Automated monitoring tools can detect suspicious behavior and alert security personnel to potential incidents requiring investigation. Audit trail preservation ensures that activity records remain available for compliance reviews and incident investigations throughout required retention periods. Hosting providers must maintain secure log storage while providing healthcare clients with access to relevant audit information.
Data Integrity and Transmission Security
Encryption implementation protects healthcare client data during storage and transmission through approved cryptographic methods and key management practices. Hosting providers must maintain current encryption standards while ensuring that decryption capabilities remain available for legitimate access needs. Data validation procedures verify that healthcare client information maintains accuracy and completeness throughout processing and storage activities. These procedures help detect unauthorized modifications or corruption that could compromise data integrity or patient care. Backup and recovery systems maintain additional copies of healthcare client data while preserving security protections and access controls. Frequent testing ensures that backup systems function properly and can restore data without compromising compliance requirements.
Network Security and Communication Controls
Firewall configuration creates secure network boundaries that control traffic between healthcare client systems and external networks. These controls help prevent unauthorized access while enabling necessary communication for healthcare operations and patient care. Intrusion detection systems monitor network traffic for potential security threats and unauthorized access attempts involving healthcare client data. Automated alerting helps hosting providers respond quickly to potential incidents while maintaining comprehensive security coverage. Secure communication channels protect data transmission between healthcare clients and hosting infrastructure through encrypted connections and authenticated access methods. These channels help ensure that PHI remains protected during transfer and remote access activities.
Business Associate Agreement Obligations
Contractual requirements establish hosting provider responsibilities for PHI protection including specific security measures, incident response procedures, and compliance monitoring activities. These agreements must address all applicable HIPAA compliant hosting requirements while defining clear performance expectations. Liability allocation between healthcare organizations and hosting providers depends on their respective roles in PHI protection and which party controls different aspects of data security. Clear contractual provisions help define responsibility for various compliance obligations and potential violations. Termination procedures address how healthcare client data is handled when hosting relationships end including data return, destruction, or transfer requirements.
Compliance Monitoring and Vendor Oversight
Risk assessment procedures help healthcare organizations evaluate hosting provider security practices and identify potential vulnerabilities that could compromise PHI protection. These assessments should be conducted regularly and documented to demonstrate due diligence in vendor oversight. Performance monitoring tracks hosting provider compliance with contractual obligations and HIPAA requirements through security audits, incident reviews, and service level assessments. Healthcare organizations must maintain ongoing oversight rather than relying solely on initial vendor evaluations. Documentation requirements ensure that hosting providers maintain records demonstrating their compliance efforts including policies, training materials, audit results, and incident reports. Well kept records support healthcare client compliance demonstrations and regulatory reviews when requested.
ActiveCampaign is a cloud-based marketing automation platform that helps organizations manage their email marketing, customer relationships, and sales automation, and it can be HIPAA compliant for enterprise deployments. The platform’s automation capabilities enable organizations to streamline their workflows and carry out marketing campaigns with less administrative overhead, saving both time and money. Additionally, ActiveCampaign’s advanced segmentation tools allow companies to personalize campaigns according to demographics, behavior, and past interactions.
While these capabilities are highly sought after by healthcare organizations who want to enhance their engagement with patients and customers, they require one characteristic above all in their marketing platform of choice: HIPAA compliance.
More specifically, for a company to send electronic protected health information (ePHI) through an email marketing platform, it must comply with the Health Insurance Portability and Accountability Act (HIPAA).
Let’s take a closer look…
Is ActiveCampaign HIPAA Compliant?
Firstly, to address the question directly – is ActiveCampaign HIPAA compliant? – it is notHIPAA-compliant by default. Healthcare organizations can only conduct HIPAA compliant marketing campaigns if they are signed up for the Enterprise version of the solution.
Our findings revealed that companies are required to configure ActiveCampaign accordingly to ensure HIPAA compliance. Again, that healthcare organizations need to ensure compliance themselves – and how they do so – isn’t made 100% clear in any of the company’s literature.
ActiveCampaign’s Security Features
ActiveCampaign does not provide message-level encryption for outbound campaign emails (e.g., portal-based pickup or enforced encryption to recipients), so you generally should not put PHI in the body of campaign emails. This limits your ability to engage patients with personalized and relevant messages that result in more opens, clicks and conversions.ActiveCampaign’s sole mention of HIPAA compliance is on their security features page, on which they state:
“ActiveCampaign is heavily focused on GDPR, SOC 2, and HIPAA compliance. We constantly improve our security to go above and beyond compliance standards.”
Now, while they don’t go into further detail, ActiveCampaign does indeed feature some security controls that lend themselves towards HIPAA compliance. These include:
Single Sign-On (SSO): users can sign into ActiveCampaign through an existing identity provider, such as Google, without requiring a separate set of credentials. This helps protect data through stronger access control and allows for simpler user authentication.
Multi-Factor Authentication (MFA): ActiveCampaign supports MFA, requiring users to verify their identity through text or time-based one-time password (TOTP) authentication. This adds another layer of security, in line with HIPAA regulations, and is something that could be more emphasized if changes to the Security Rule come into effect later this year.
Automatic Session Timeouts: idle sessions are automatically logged out after a short amount of time: protecting them from session hijacking and related cyber threats.
Additionally, users are responsible for setting up the proper email authentication protocols themselves, including:
SPF (Sender Policy Framework): Specifies authorized mail servers for your domain.DKIM (DomainKeys Identified Mail): Adds a digital signature to your emails, verifying their authenticity.DMARC (Domain-based Message Authentication, Reporting & Conformance): Provides instructions to email providers on handling messages that fail SPF or DKIM checks.
Setting up these protocols helps fight against email spoofing and phishing attacks, ensuring that your emails are recognized as legitimate by recipients’ mail servers.
Will ActiveCampaign Sign a BAA?
Now, even with some security features and stating they are focused on compliance, a marketing platform can’t truly comply with HIPAA regulations unless they sign a Business Associate Agreement (BAA).
ActiveCampaign’s BAA availability appears limited and may depend on plan level; confirm directly with ActiveCampaign.
Discover HIPAA Compliant Alternatives to ActiveCampaign
As this post illustrates, while it is possible to make ActiveCampaign HIPAA compliant, it’s not straightforward. Fortunately, there are alternative email and marketing solutions that are fully HIPAA-compliant – out-of-the-box – removing the guesswork and ambiguity from securing your digital communications and allowing you to focus on engaging with your patients and customers. This includes LuxSci Secure Marketing, which enables healthcare organizations to proactively reach patients and customers with HIPAA compliant email marketing campaigns that can securely include PHI for increased engagement, lead generation and sales.
Discover how LuxSci can elevate your secure healthcare engagement efforts with PHI data, resulting in better health outcomes for your patients, in addition to enhancing your brand identity and achieving your company’s growth objectives. Reach out today for a call or demo.
Artificial intelligence (AI) has been the hottest topic in technology for the past few years now, with a focus on how it’s transforming business and the way we work. While we’d seen glimpses of AI’s capabilities before, the release of ChatGPT (containing OpenAI’s groundbreaking GPT-3.5 AI model) put the technology’s limitless potential on full display. Soon, stakeholders in every industry looked to find ways to integrate AI into their organizations, so they could harness its huge productivity and efficiency benefits.
The problem? Hackers and bad actors are using AI too, and it’s only strengthening their ability to carry out data breaches, including AI-based email security threats.
While AI brings considerable advantages to all types of businesses, unfortunately, its vast capabilities can be used for malicious purposes too. With their unparalleled ability to process data and generate content, cybercriminals can use a variety of AI tools to make their attacks more potent, increasing their potential to get past even the most secure safeguards.
With all this in mind, this post discusses how AI is helping cyber criminals massively scale their efforts and carry out more sophisticated, widespread attacks. We’ll explore how malicious actors are harnessing AI tools to make AI-based email cyber attacks more personalized, potent, and harmful, and cover three of the most common threats to email security that are being made significantly more dangerous with AI. This includes phishing, business email compromise (BEC) attacks, and malware. We’ll also offer strategic insights on how healthcare organizations can best mitigate AI-enhanced email threats and continue to safeguard the electronic protected health information (ePHI) under their care.
How Does AI Increase Threats To Email Security?
AI’s effect on email security threats warrants particular concern because it enhances them in three ways: by making email-focused attacks more scalable, sophisticated, and difficult to detect.
Scalability
First and foremost, AI tools allow cybercriminals to scale effortlessly, enabling them to achieve exponentially more in less time, with few additional resources, if any at all.
The most obvious example of the scalable capabilities of generative AI involves systems that can create new content from simple instructions, or prompts. In particular, large language models (LLMs), such as those found in widely used AI applications like ChatGPT, allow malicious actors to rapidly generate phishing email templates and similar content that can be used in social engineering attacks, with a level of accuracy in writing and grammar not seen before. Now, work that previously would take email cybercriminals hours can be achieved in mere seconds, with the ability to make near-instant improvements and produce countless variations.
Similarly, should a social engineering campaign yield results, i.e., getting a potential victim to engage, malicious actors can automate the interaction through AI-powered chatbots, which are capable of extended conversations via email. This increases the risk of a cybercriminal successfully fooling an employee at a healthcare organization to grant access to sensitive patient data or reveal their login credentials so they can breach their company’s email system.
Additionally, AI allows cybercriminals to scale their efforts by automating aspects of their actions, and gathering information about a victim, i.e., a healthcare organization before launching an attack. AI tools also can scan email systems, metadata, and publicly available information on the internet to identify vulnerable targets, and their respective security flaws. They can then use this information to pinpoint and prioritize high-value victims for future cyber attacks.
Sophistication
In addition to facilitating larger and more frequent cyber attacks, AI systems allow malicious actors to make them more convincing. As mentioned above, generative AI allows cybercriminals to create content quickly, and craft higher-quality content than they’d be capable of through their own manual efforts.
Again, using phishing as an example, AI can refine phishing emails by eliminating grammatical errors and successfully mimicking distinct communication styles to make them increasingly indistinguishable from legitimate emails. Cybercriminals are also using AI to make their fraudulent communications more context-aware, referencing recent conversations or company events and incorporating data from a variety of sources, such as social media, to increase their perceived legitimacy.
In the case of another common email attack vector, malware, AI can be used to create constantly evolving malware that can be attached to emails. This creates distinct versions of malware that are more difficult for anti-malware tools to stop.
More Difficult to Detect
This brings us to the third way in which AI tools enhance email threats: by making them harder to detect and helping them evade traditional security measures.
AI-powered email threats can adapt to a healthcare organization’s cybersecurity measures, observing how its defenses, such as spam filters, flag and block malicious activity before automatically adjusting its behavior until it successfully bypasses them.
After breaching a healthcare organization’s network, AI offers cybercriminals several new and enhanced capabilities that help them expedite the achievement of their malicious objectives, while making detection more difficult.
These include:
Content Scanning: AI tools can scan emails, both incoming and outgoing, in real-time to identify patterns pertaining to sensitive data. This allows malicious actors to identify target data in less time, making them more efficient and capable of extracting greater amounts of PHI.
Context-Aware Data Extraction: similarly, AI can differentiate between regular text and sensitive data by recognizing specific formats (e.g., medical record numbers, insurance details, social security numbers, etc.)
Stealthy Data Exfiltration: analyzing and extracting PHI, login credentials, and other sensitive data from emails, while blending into normal network traffic.
Distributed Exfiltration: instead of transferring large amounts of data at once, which is likely to trigger cyber defenses, hackers can use AI systems that slowly exfiltrate PHI in smaller payloads over time, better blending into regular network activity.
AI and Phishing
Phishing attacks involve malicious actors impersonating legitimate companies, or employees of a company, to trick victims into revealing sensitive patient data. Typical phishing attack campaigns rely on volume and trial and error. The more messages sent out by cybercriminals, the greater the chance of snaring a victim. Unfortunately, AI applications allow malicious actors to raise the efficacy of their phishing attacks in several ways.
First, AI allows scammers to craft higher-quality messaging. One of the limitations of phishing emails for healthcare companies is that they’re often easy to identify, since they are replete with mis-spelled words, poor grammar, and bad formatting. AI allows malicious actors to overcome these inadequacies and create more convincing messages that are more likely to fool healthcare employees.
On a similar note, because healthcare is a critical industry, it’s consistently under threat from cybercriminals, which are also known as advanced persistent threats (APTs) or even cyber terrorists. By definition, such malicious actors often reside outside the US and English isn’t their first language.
While, in the past, this may have been obvious, AI now provides machine translation capabilities, allowing cybercriminals to write messages in their native language, translating them to English, and refining them accordingly. Consequently, scammers can craft emails with fewer tell-tale signs that healthcare organizations can train their employees to recognize.
Additionally,as alluded to earlier, AI models can produce countless variations of phishing messages, significantly streamlining the trial-and-error aspect of phishing campaigns and allowing scammers to discover which messaging works best in far less time.
Lastly, as well as enhancing the efficacy of conventional phishing attacks, AI helps improve spear phishing campaigns, a type of fraudulent email that targets a particular organization or employee who works there, as opposed to the indiscriminate, “scatter” approach of regular phishing.
While, traditionally, spear phishing requires a lot of research, AI can scrape data from a variety of sources, such as social media, forums, and other web pages, to automate a lot of this manual effort. This then allows cybercriminals to carry out the reconnaissance required for successful attacks faster and more effectively, increasing their frequency and, subsequently, their rate of success.
AI and Business Email Compromise (BEC) Attacks
A business email compromise (BEC) is a type of targeted email attack that involves cybercriminals gaining access to or spoofing (i.e., copying) a legitimate email account to manipulate those who trust its owner into sharing sensitive data or executing fraudulent transactions. BEC attacks can be highly effective and, therefore, damaging to healthcare companies, but they typically require extensive research on the target organization to be carried out successfully. However, as with spear phishing, AI tools can drastically reduce the time it takes to identify potential targets and pinpoint possible attack vectors.
For a start, cybercriminals can use AI to undertake reconnaissance tasks in a fraction of the time required previously. This includes identifying target companies and employees whose email addresses they’d like to compromise, generating lists of vendors that do business with said organization, and even researching specific individuals who are likely to interact with the target.
Once a target is acquired, malicious actors can use AI tools in a number of terrifying ways to create more convincing messaging. By analyzing existing emails, AI solutions can quickly mimic the writing style of the owner of the compromised account, giving them a better chance of fooling the people they interact with.
By the same token, they can use information gleaned from past emails to better contextualize fraudulent messages, i.e., adding particular information to make subsequent requests more plausible. For example, requesting data or login credentials in relation to a new project or recently launched initiative.
Taking this a step further, cybercriminals could supplement a BEC attack with audio or video deepfakes created by AI to further convince victims of their legitimacy. Scammers can use audio deepfakes to leave voicemails or, if being especially brazen, conduct entire phone conversations to make their identity theft especially compelling.
Meanwhile, scammers can create video deepfakes that relay special instructions, such as transferring money, and attach them to emails. Believing the request came from a legitimate source, there’s a chance employees will comply with the request, boosting the efficacy of the BEC attack in the process. Furthermore, the less familiar an employee is with attacks of this kind, the more likely they are to fall victim to them.
In short, AI models make it easier to carry out BEC attacks, which makes it all the more likely for cybercriminals to attempt them.
AI and Malware
Malware refers to any kind of malicious software (hence, “mal(icous) (soft)ware”), such as viruses, Trojan horses, spyware, and ransomware, all of which can be enhanced by AI in several ways.
Most notable is AI’s effect on polymorphic malware, which has the ability to constantly evolve to bypass email security measures, making malicious attachments harder to detect. Malware, as with any piece of software, carries a unique digital signature that can be used to identify it and confirm its legitimacy. Anti-malware solutions traditionally use these digital signatures to flag instances of malware, but the signature of polymorphic malware changes as it evolves, allowing it to slip past email security measures.
While polymorphic malware isn’t new, and previously relied on pre-programmed techniques such as encryption and code obfuscation, AI technology has made it far more sophisticated and difficult to detect. Now, AI-powered polymorphic malware can evolve in real-time, adapting in response to the defense measures it encounters.
AI can also be used to discover Zero Day exploits, i.e., previously unknown security flaws, within email and network systems in less time. Malicious actors can employ AI-driven scanning tools to uncover vulnerabilities unknown to the software vendor at the time of its release and exploit them before they have the opportunity to release a patch.
How To Mitigate AI-Based Email Security Threats
While AI can be used to increase the effectiveness of email attacks, fortunately, the fundamentals of mitigating email threats remains the same; organizations must be more vigilant and diligent in following email security best practices and staying on top of the latest threats and tools used by cybercriminals.
Let’s explore some of the key strategies for best mitigating AI-based email threats and better safeguarding the ePHI within your organization.
Educate Your Employees: ensure your employees are aware of how AI can enhance existing email threats. More importantly, demonstrate what this looks like in a real-world setting, showing examples of AI-generated phishing and BEC emails compared to traditional messages, what a convincing deepfake looks and sounds like, instances of polymorphic malware, and so on.
Additionally, conduct regular simulations, involving AI-enhanced phishing, BEC attacks, etc., as part of your employees’ cyber threat awareness training. This gives them first-hand experience in identifying AI-driven email threats, so they’re not caught off-guard when they encounter them in real life. You can schedule these simulations to occur every few months, so your organization remains up-to-date on the latest email threat intelligence.
Enforce Strong Email Authentication Protocols: ensure that all incoming emails are authenticated using the following:
Sender Policy Framework (SPF): verifies that emails are sent from a domain’s authorized servers, helping to prevent email spoofing.
DomainKeys Identified Mail (DKIM): preserves the integrity of the message’s contents by adding a cryptographic signature, mitigating compromise during transit, e.g., stealthy or distributed data exfiltration.
Domain-based Message Authentication, Reporting & Conformance (DMARC): enforces email authentication policies, helping organizations detect and block unauthorized emails that fail SPF or DKIM checks.
By verifying sender legitimacy, preventing email spoofing, and blocking fraudulent messages, these authentication protocols are key defenses against AI-enhanced phishing and business email compromise (BEC) attacks.
Access Control: while AI increases the risk of PHI exposure and login credential compromise, the level of access that a compromised or negligent employee has to patient data is another problem entirely. Subsequently, data breaches can be mitigated by ensuring that employees only have access to the minimum amount of data required for their job roles, i.e. role-based access control (RBAC). This reduces the potential impact of a given data breach, as it lowers the chances that a malicious actor can extract large amounts of data from a sole employee.
Implement Multi-Factor Authentication (MFA): MFA provides an extra layer of protection by requiring users to verify their identity in multiple ways. So, even in the event that a cybercriminal gets ahold of an employee’s login credentials, they still won’t have sufficient means to prove they are who they claim to be.
Establish Incident Response and Recovery Plans: unfortunately, by making them more scalable, sophisticated, and harder to detect, AI increases the inevitability of security breaches. This makes it more crucial than ever to develop and maintain a comprehensive incident response plan that includes strategies for responding to AI-enhanced email security threats.
By establishing clear protocols regarding detection, reporting, containment, and recovery, your organization can effectively mitigate, or at least minimize, the impact of email-based cyber attacks enhanced by AI. Your incident response plan should be a key aspect of your employee cyber awareness training, so your workforce knows what to do in the event of a security incident.
Get Your Copy of LuxSci’s 2025 Email Cyber Threat Readiness Report
To learn more about healthcare’s ever-evolving email threat landscape and how to best ensure the security and privacy of your sensitive data, download your copy of LuxSci’s 2025 Email Cyber Threat Readiness Report.
You’ll discover:
The latest threats to email security in 2025, including AI-based attacks
The most effective strategies for strengthening your email security posture
The upcoming changes to the HIPAA Security Rule and how it will impact healthcare organizations.
