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.

Download LuxSci’s Email Cyber Threat Readiness Report

To gain further insight into the biggest email threats to healthcare companies in 2025, including increasingly prevalent AI threats, download your copy of LuxSci’s Email Cyber Threat Readiness Report. 

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.

Current healthcare marketing trends include personalized patient communications, digital engagement platforms, data-driven campaign optimization, telehealth promotion, wellness program marketing, and patient experience enhancement initiatives. Healthcare organizations are adopting advanced analytics, automation tools, and omnichannel strategies while maintaining HIPAA compliance and addressing changing patient expectations for convenient, accessible healthcare services. Healthcare marketing has undergone dramatic transformation as patient expectations align with consumer experiences in other industries. Organizations should aim to balance their marketing approaches with strict regulatory requirements while competing for patient attention in crowded digital spaces, using the newest healthcare marketing trends.

Digital-First Patient Engagement Strategies

Digital communication has become standard as patients increasingly access healthcare information through computers, smartphones and tablets. Healthcare organizations are optimizing email campaigns, patient portals, and appointment scheduling systems for mobile devices while maintaining security protections for PHI. Social media presence helps healthcare organizations build community relationships and share health education content while navigating privacy restrictions that limit patient-specific communications. Organizations can focus on general health information, provider expertise, and organizational culture rather than individual patient stories. Video content creation enables healthcare organizations to explain complex medical procedures, introduce providers, and demonstrate facility capabilities through engaging visual formats. These materials help patients make informed decisions while building trust and familiarity with healthcare teams.

Personalization and Targeted Communications

Behavioral targeting uses patient interaction and email engagement data to deliver relevant communications about services, appointments, and health management activities, to name a few. Healthcare organizations can analyze portal usage, appointment patterns, and communication preferences to customize their outreach while respecting privacy boundaries. Condition-specific messaging allows healthcare organizations to provide targeted education and support for patients with particular diagnoses or health concerns. These types of healthcare marketing trends require careful authorization management while offering resources that support patient care and engagement. Lifecycle marketing addresses different patient journey stages from initial awareness through ongoing care relationships. Healthcare organizations should develop communication strategies that recognize where patients are in their healthcare journey and provide appropriate information and support.

Healthcare Marketing Trends & Performance Measurement

Patient and customer journey mapping helps healthcare organizations understand how individuals interact with their services and products across multiple touchpoints including email, websites, patient portals, appointments, and in-person care delivery. This analysis informs communication strategies and identifies engagement opportunities. Predictive analytics enable healthcare organizations to identify patients who might benefit from specific services or who are at risk for care gaps. These insights support proactive outreach while requiring careful consideration of authorization requirements and appropriate use of clinical data. Campaign attribution tracking helps healthcare organizations understand which marketing activities drive patient engagement and care utilization. This analysis supports budget allocation decisions while maintaining patient privacy through aggregate reporting methods.

Telehealth and Virtual Care Promotion

Remote service marketing has expanded rapidly as healthcare organizations promote telehealth capabilities and virtual care options. Modern healthcare marketing trends capitalize on convenience, accessibility, and safety while addressing patient concerns about technology adoption and care quality. Technology education helps patients understand how to access and use virtual care services through instructional content, demonstration videos, and step-by-step guides. These materials reduce barriers to telehealth adoption while improving patient satisfaction with virtual encounters. Hybrid care communication explains how organizations integrate in-person and virtual services to provide comprehensive patient care. Marketing messages emphasize continuity, convenience, and personalized care delivery across different service modalities.

Wellness and Prevention Focus

Population health initiatives encourage people to engage in preventive care activities including screenings, vaccinations, and wellness programs. Healthcare organizations use educational content and targeted outreach to promote health maintenance while demonstrating their commitment to community well-being. Chronic disease management marketing helps patients with ongoing health conditions understand available support services, including care coordination, education programs, and monitoring tools. These communications often qualify as healthcare operations rather than healthcare marketing trends. Mental health awareness campaigns address growing recognition of behavioral health needs while reducing stigma and promoting available services. Healthcare organizations cover sensitive topics while providing valuable resources, deriving that value from the newest healthcare marketing trends.

Patient Experience Enhancement

Convenience-focused messaging emphasizes service features that improve patient experience including online scheduling, extended hours, multiple locations, and streamlined registration processes. Marketing communications highlight organizational efforts to reduce friction and improve access to care and new healthcare products. Transparency initiatives include clear pricing information, quality metrics, and provider credentials that help patients make informed healthcare decisions. These communications build trust while differentiating organizations from competitors who may not provide comparable transparency. Customer service excellence promotion showcases organizational commitment to patient satisfaction through testimonials, service guarantees, and responsiveness metrics. Healthcare organizations display their efforts to create positive patient experiences throughout the care journey.

Regulatory Compliance and Privacy Protection

Consent management sophistication has increased as healthcare organizations implement more granular authorization systems that allow patients to specify preferences for different types of communications. These systems support personalized marketing while maintaining strict compliance with privacy requirements. De-identification strategies enable healthcare organizations to conduct marketing analytics and population health research while protecting individual patient privacy. These approaches allow aggregate analysis of patient populations without exposing personal health information. Audit trail enhancement helps healthcare organizations demonstrate compliance with healthcare marketing trends through documentation of authorization processes, content approval, and campaign execution. These records support regulatory reviews and internal compliance assessments.

Healthcare Marketing Trends & Technology Integration

Marketing automation and email platforms designed for healthcare enable organizations to scale patient communications while maintaining compliance controls and personalization capabilities. These systems integrate with electronic health records and patient management systems to coordinate messaging across the care continuum. Artificial intelligence applications can help healthcare organizations optimize campaign timing, content selection, and communication channels while respecting patient preferences and authorization requirements. These tools enable more sophisticated marketing strategies while reducing manual administrative burden. Omnichannel or multichannel coordination ensures consistent messaging across email, text, portal communications, and other touchpoints while maintaining appropriate security protections for each channel.