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Posts Tagged ‘social engineering’

Pretexting: The Latest Threat to Email Security

Monday, June 12th, 2023

Verizon recently released its 2023 Data Breach Investigations Report- a comprehensive review of breaches and security incidents occurring over the last year. One surprising finding was a sharp rise in pretexting attacks. To properly respond to these threats, security professionals must understand the risks and prepare for exploitation attempts.

email breach frustration

What is a Pretexting Attack?

A pretexting attack is a type of social engineering scam where the attacker tries to convince the victim to give up valuable information or access to a service or system by creating a story or pretext.

These types of scams are a form of phishing. However, pretexting requires more effort than regular phishing attacks that aim to reach as many potential victims as possible and fool one of them into clicking on a malicious link.

To successfully execute a pretexting scam, attackers spend time learning about the target and use the information to manipulate human behavior to achieve a desired outcome. The threat actor may spend more time performing reconnaissance and engaging with the victim. This time investment means that pretexting is often used in attacks with a higher anticipated payout.

In the 2023 Data Breach Investigations Report, analysts found that 50% of all social engineering attacks are pretexting incidents. This represented a 2x increase from the 2022 report. With these types of attacks on the rise, organizations must understand the threat and how to protect themselves from these breaches.

What’s an Example of a Pretexting Attack?

In a business context, pretexting falls under the category of business email compromise scams. Every pretexting scam includes two main elements- a plausible situation and a character. First, by creating the right situation to present to the victim, it is possible to fool the target into believing it is legitimate. Secondly, selecting the right person or organization to impersonate is equally essential.

If the attacker fails to pick a plausible scenario or chooses the wrong entity to impersonate, it drastically reduces the likelihood of success. That’s why these schemes require surveillance and research to achieve their aims.

Some common pretexts or scenarios that you should watch out for include the following:

  • A CEO or manager asking for an urgent transfer of funds to an unusual account
  • A vendor or supplier asking for payment of an unpaid invoice
  • A coworker asking for a password to an account they should already have access to

If the attacker has adequately researched the target, they can be quite convincing in impersonating a legitimate source and convincing them to hand over valuable information or assets.

How to Protect Against Pretexting Attacks

Instilling a healthy dose of skepticism in employees is always recommended. Proper training and reminders can help employees remain suspicious of requests for information and funds they do not expect. In addition, implementing the right policies and technologies can help reduce the risk of falling for a pretexting scam. Some additional steps to take to secure your email accounts include:

  • Deploying SPF, DKIM, and DMARC to prevent spoofing.
  • Using email filtering tools to flag suspicious email activity.
  • Installing anti-malware software on all devices can help mitigate the effects if a malicious link is clicked.
  • Deploying multi-factor authentication to guard against the risk of password theft and stolen credentials.
  • Updating business processes to ensure financial payments are appropriately vetted and signed off on.

Do you need help securing your email accounts? Contact LuxSci today to learn how we can help your business avoid falling victim to pretexting scams.

How Email Filtering Prevents Cyberattacks

Tuesday, September 20th, 2022

Almost every business uses email as a primary communication channel, and as a result, it is a major attack vector for cybercriminals. Every employee’s email account represents a possible risk to your business operations. One way to protect employee accounts is with email filtering tools.

email filtering

The Risks of Email Communications

Email is a necessary business communication tool. However, it also introduces significant risks. A 2019 HIMSS survey found that 70% of breaches originated with a phishing email. It’s unrealistic to stop people from using email, so the next best step is protecting accounts and reducing risk.

Social Engineering Risks

The number one threat to any cybersecurity program is human error. Phishing campaigns are so successful because they prey on human vulnerabilities. Everyone makes mistakes. Even the most cautious people can be caught up in a busy day and accidentally click on a malicious link without adequately vetting the sender.

By stopping these malicious emails from entering the employee’s inbox, there is no chance they will mistakenly click on them. Although phishing training is still essential in case emails get through the system, a good email filtering service will stop most suspicious messages.

What is Email Filtering?

Email filtering tools prevent malicious messages like spam from reaching inboxes. Filtering tools scan the incoming emails for signs of cybercrime- these could include bad links, content used by known spammers, or other indicators. Email filtering stops suspicious emails from being delivered to the intended recipient.

How Email Filtering Works to Stop Spam

There are many ways to filter emails, some of which are more restrictive than others. Every email filtering service is different, so we are speaking in generalities for informative purposes. However, the process works the same way. All incoming emails are scanned to see if they contain any information that violates the filter settings. Traditionally, the filter scans both the email header and the message contents.

The email header contains information about the sender, including their IP address, email domain, sending address, security signatures, and other technical information about how and when the email was sent. Email filters will flag messages sent from suspicious senders and known spammers. Email filters can be so restrictive as to entirely stop incoming emails from external organizations or domains.

Filtering systems also scan email message contents. Phishing schemes rely on unsuspecting users clicking on links to install malware on a user’s computer. Email filtering systems can scan and remove links to known suspicious websites. Organizations can go further and configure their filtering systems to remove all links in emails. This may be too restrictive for some, but it is an option for some filtering tools. In addition,  scanners can flag emails for spammy content. Some commonly flagged messages include overly promotional marketing emails, messages with adult themes, and those that mention illegal activities.

Once the suspicious emails are flagged, then what happens? The settings are often configurable. Some email filtering systems add a banner to the top of scanned messages that alerts the user to any risky-seeming content. However, once users are accustomed to seeing it, they may ignore or not notice the warnings.

The most common solution is to divert flagged emails to quarantine. There, users can review the messages to determine if they are spam or not. Sometimes unsuspecting messages get caught up in filters, and this gives the intended recipient a chance to retrieve wanted messages. For extremely conservative organizations, the system can automatically delete flagged messages and never deliver them to the inbox out of an abundance of caution.

Conclusion

Everyone should be concerned about the rise of cyberattacks and the potential risks to their businesses. Use an email provider that offers sophisticated email filtering services. LuxSci’s Premium Email Filtering is an available add-on to our Secure Email Hosting and Secure Connector solutions.

5 Ways to Prevent Human Impacts on Your Cybersecurity Program

Tuesday, October 12th, 2021

There are multiple ways that humans impact cybersecurity and can put data at risk. From being tricked by phishing emails to choosing easily guessed passwords, insider fraud and mistakenly classifying the security level of emails and other content, the actions of your employees can make your data vulnerable.

While the impact of human errors can’t be eliminated entirely, there are steps that can be taken to minimize the effects humans can have on your cybersecurity. Five of these steps are detailed below.

prevent human effects on cybersecurity

1. Adopt an “Opt-out” approach to encryption

At LuxSci, our philosophy is to limit risk by taking basic security choices out of employee hands. Instead of relying on employees to encrypt emails with sensitive contents, we automatically encrypt every message by default. This makes it more difficult for an employee to carelessly send out sensitive emails without the proper safeguards.

Conversely, when taking an opt-in approach to cybersecurity, employees are responsible for remembering to encrypt each email before sending. Anytime an employee forgets to take this step, it represents a potential security breach with all the liability that entails. Adopting an opt-out approach to encryption reduces this risk significantly. While many companies use opt-in processes because of their convenience, they introduce a high degree of risk. LuxSci’s SecureLine encryption technology enables a new generation of email encryption that features both flexibility and security.

2. Implement strict email filtering and network firewalls

Are you familiar with the aphorism “an ounce of prevention is worth a pound of cure”? By taking steps to prevent malicious threats from reaching your systems and networks, your employees will not have to spend their time trying to figure out what is a threat.

Email filtering

Phishing is one of the greatest threats to cybersecurity. Rather than relying strictly on human judgement with regard to which emails to open, using a sender policy system that filters or flags suspicious incoming emails can appreciably improve cybersecurity. Don’t count on your busy employees to know when an email is suspicious. Instead, use email filtering to keep those emails from even entering their inboxes.

Network firewalls

Firewalls help prevent attackers from gaining easy access to your network. They prevent suspicious connections or messages from connecting to the network or reaching their intended destination. By serving as a first line of defense, a firewall plays a major part in shielding your network from cyberattacks. By preventing external threats from accessing your applications, you don’t need to count on your employees to recognize when something isn’t right.

3. Prevent human impacts on cybersecurity by training staff

Almost every modern workplace relies on internet-connected devices to get work done. However, just training staff to use your technology effectively is not enough. With cyberattacks growing in frequency, keeping your staff aware of the latest cybersecurity threats is essential to protect your business. With data breaches, denial-of-service (DoS), and ransomware attacks accounting for tremendous financial losses, failing to prepare your staff for the danger these attacks pose to your IT operations can be costly.

Your employees can prevent security breaches if they are properly trained in the latest cybersecurity best practices. Some complex security breaches can evade even the best automated security measures. If your staff knows what to look for, they can play a crucial role in augmenting your existing security measures.

In addition, hackers often target employees as their first access point for gaining entry to a network. As a result, restricting cybersecurity training to just the IT department can leave your employees vulnerable to social engineering, phishing emails, and other exploits used by hackers to dupe them.

A cybersecurity training program can help reduce risks by familiarizing employees with the tricks used by hackers to gain access to their accounts. As part of the training program, it’s important to test employees on core concepts to ensure the message is retained.

4. Enforce strong password and access control policies

To reduce the risk of security breaches, a robust password protection program is necessary. One of the key elements is enforcing password complexity. Simple passwords are vulnerable to brute force hacking, enabling hackers to easily access employee accounts.

Requiring staff to use unique, complex passwords makes it much harder for hackers to gain access to an account. A complex password can include multiple types of characters (numbers, letters, capitalization, special characters) and minimum character lengths. Learn more about creating secure passwords in our blog archives.

Multi-factor authentication (MFA) is another key element of a robust security policy. By requiring more than a single action to access an account, you can drastically cut down on security breaches due to lost or stolen passwords. Given that compromised passwords are a significant cause of security breaches, using MFA is a powerful tool for bolstering network security.

In addition, setting up time-based access controls for your sensitive systems can prevent bad actors from gaining unauthorized access. For example, if you have an employee who works a 9am-5pm shift, you can prevent her from accessing the system from 6pm-8am. That way if a bad actor did get her credentials, they would be unable to login when she was offline. This could prevent someone from taking over your systems overnight.

5. Adopt the Zero Trust security stance

What is Zero Trust Architecture? Essentially, it is a policy for guarding against cyberattacks by assuming that every aspect of a network is subject to attack. This includes potential insider threats from employees or attackers who have infiltrated your network. This contrasts with other security approaches that assume that traffic within a network’s security perimeter can automatically be trusted. Instead, Zero Trust Architecture minimizes the security perimeter as much as possible to reduce the chance of a security breach and evaluates the credentials and actions of users at all levels of access to identify any actors inside the network who may pose a threat.

By providing a more granular level of threat detection and limiting access within the network, a Zero Trust security approach is more rigorous than existing security models focused primarily on perimeter security.

ZTA improves security without imposing unduly burdensome requirements. It gives users access to just the minimum level of data and services needed to fulfill their role. This can help stop insider threats from employees. If a lower-level employee with little access to sensitive data has their credentials compromised, it is less threatening to the organization’s data security. The attacker will not be able to penetrate other parts of the network without additional identity verification.

Limiting human impacts on your cybersecurity to decrease risk

Humans can amplify cybersecurity risks in many ways. Between careless mistakes and intentional sabotage, there are a number of things that employees can do to expose your company to cybersecurity risks. The steps listed above comprise a comprehensive set of measures you can take to minimize negative human impacts on cybersecurity. In conjunction with a robust security solution, these measures can significantly enhance your cybersecurity defenses.

Secure your organization by contacting us to find out how to get onboard with LuxSci.

Best Practices for Minimizing the Impact of Social Engineering on Your Organization

Tuesday, June 26th, 2018

When many people think of cybercrime, they think of a bearded guy tapping away at his keyboard in a dark room, searching for vulnerabilities in the network that can be exploited. While exploits are a significant threat, the reality is that many attacks happen in smoother and more subtle ways. Why spend days trying to get in the backdoor when an attacker can ask nicely to be let in through the front? This is the essence of social engineering.

A social engineer uses many tactics to manipulate victims into giving up whatever information they need. Imagine someone with a police uniform knocks on your door and asks for a word. They look authoritative, so you invite them in to sit down. They spend five minutes discussing crime in the neighborhood, and on the way out, they secretly swipe the spare key. A few days later, you return home to discover that all your valuables are gone.

In this case, the social engineer tricked their way into the home by using a police uniform to appear authoritative. Most people won’t think to turn down a police officer’s request or ask for further identification. The attacker took advantage of this to gain access to the house, where they could get what they wanted, the spare key.

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8 Ways to Protect yourself from Forged/Fake Email

Monday, January 26th, 2015

The Internet is rife with fake and forged email.  Typically these are email messages that appear to be from a friend, relative, business acquaintance, or vendor that ask you to do something.  If you trust that the message is really from this person, you are much more likely to take whatever action is requested — often to your detriment.

These are forms of social engineering — the “bad guys” trying to establish a trusted context so that you will give them information or perform actions that you otherwise would not or should not do.

Here we address some of the actions you can take to protect yourself from these attacks as best as possible.  We’ll present these in the order of increasing complexity / technical difficulty.

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