Business Email Compromise: How BEC Attacks Work & Defend Against Scams

Business email compromise is one of the fastest-growing threats facing companies of all sizes. When a scammer gains access to a legitimate email account, they can impersonate executives, request wire transfers, or steal sensitive information. In this blog, you’ll learn what business email compromise is, how BEC attacks work, the most common types of BEC scams, and practical steps to defend your business. We’ll also cover the impact of BEC, essential security tools, and best practices for preventing BEC in your organization.

Understanding business email compromise

Business email compromise is a targeted cybercrime where attackers use social engineering to trick employees into sending money or sensitive data. Unlike broad phishing attacks, BEC scams are highly personalized and often involve impersonation of trusted contacts. Attackers may spoof email addresses to appear as a CEO or CFO, making their requests seem urgent and legitimate.

BEC attacks can lead to unauthorized wire transfers, exposure of confidential information, and significant financial losses. Because these scams rely on human error rather than technical flaws, even companies with strong IT systems can be vulnerable. Recognizing the signs of a BEC campaign is the first step in defending your business.

How BEC attacks work: Key warning signs and prevention steps

BEC attacks are successful because they exploit trust and urgency. Here are the main ways these scams unfold and what you can do to stop them.

Mistake #1: Ignoring unusual requests

Attackers often send emails that ask for an urgent wire transfer or sensitive data. If a request seems out of the ordinary, always verify it through another channel before acting.

Mistake #2: Overlooking changes in email addresses

A common tactic is to spoof or slightly alter legitimate email addresses. Double-check the sender’s details, especially if the message involves financial or confidential information.

Mistake #3: Failing to train employees

Without proper training, staff may not recognize social engineering techniques or phishing attempts. Regular training helps everyone spot red flags and avoid falling for scams.

Mistake #4: Weak authentication practices

If your team uses simple passwords or lacks multi-factor authentication, attackers can compromise accounts more easily. Strong authentication is a must for email security.

Mistake #5: Not monitoring for account compromise

Unusual login locations or times can signal a compromised account. Set up alerts and review access logs to catch suspicious activity early.

Mistake #6: Delaying incident response

Quick action is crucial if you suspect a BEC attack. Have a clear plan for reporting, investigating, and containing threats to minimize damage.

Essential benefits of strong BEC protection

Protecting your business from BEC scams offers several important advantages:

• Reduces the risk of financial losses from fraudulent wire transfers.
• Safeguards sensitive information and intellectual property.
• Maintains trust with clients, partners, and employees.
• Helps meet compliance requirements for data security.
• Enhances your company’s reputation by preventing public breaches.
• Improves overall resilience against evolving cyber threats.

The impact of BEC: Why it matters for your business

The impact of BEC goes beyond just losing money. When attackers gain access to sensitive data or company credentials, they can damage your reputation and disrupt operations. Even a single successful BEC email can lead to long-term consequences, including legal trouble and loss of customer trust.

Businesses targeted by BEC attackers often face costly investigations, regulatory fines, and the need to upgrade their security tools. By understanding what business email compromise is and taking proactive steps, you can reduce these risks and protect your organization’s future.

Types of BEC scams: Recognizing and responding to threats

BEC scams come in several forms, each with its own warning signs. Here’s how to spot and handle the most common types.

Type #1: CEO fraud

Attackers impersonate the CEO or another executive, sending urgent requests for wire transfers or sensitive information. Always verify unusual requests, especially those involving money or confidential data.

Type #2: Invoice scams

Scammers pose as vendors or suppliers, sending fake invoices to trick your finance team into making payments. Confirm payment details with known contacts before processing invoices.

Type #3: Account compromise

A compromised account can be used to send malicious emails to colleagues or partners. Monitor for signs of unauthorized access and reset credentials immediately if you suspect a breach.

Type #4: Attorney impersonation

Attackers may impersonate legal representatives, pressuring employees to share sensitive information under the guise of legal urgency. Always verify the identity of anyone requesting confidential data.

Type #5: EAC (Email Account Compromise)

EAC involves attackers gaining control of a legitimate email account to launch further attacks. Multi-factor authentication and regular password changes help prevent this.

Type #6: Payroll diversion

Scammers try to reroute employee paychecks by submitting fraudulent direct deposit requests. Confirm any changes to payroll information directly with employees.

Defending against BEC attacks: Practical steps for your company

To protect your business, start by educating employees about the risks and signs of BEC. Regular training sessions and simulated phishing tests can help everyone stay alert. Use reliable systems for email security, including spam filters, malware detection, and multi-factor authentication.

It’s also important to establish clear procedures for handling financial requests. Require verbal confirmation for large wire transfers or changes to payment information. Regularly review and update your security policies to address new threats as they emerge.

Best practices for preventing BEC in your organization

Follow these best practices to reduce your risk of BEC:

• Train employees to recognize phishing emails and social engineering techniques.
• Use multi-factor authentication for all email accounts.
• Monitor for signs of compromised accounts or unusual login activity.
• Set up alerts for changes to payment details or wire transfer requests.
• Regularly update your security tools and review access controls.
• Encourage a culture of caution when sharing sensitive information.

Taking these steps can help your business stay ahead of scammers and protect valuable assets.

How InfoTank can help with business email compromise

Are you a growing business looking to strengthen your defenses against business email compromise? If you’re expanding and want to keep your company safe from BEC attacks, our team is here to help. We understand the unique challenges that come with growth and can tailor solutions to fit your needs.

Business email compromise is a serious threat, but you don’t have to face it alone. InfoTank offers expert guidance, reliable security tools, and ongoing support to keep your business protected. Contact us today to learn how we can secure your email accounts and prevent costly scams.

Frequently asked questions

What is business email compromise, and how can I spot a BEC attack?

Business email compromise is when an attacker uses social engineering to trick you into sharing sensitive information or sending money. Watch for unusual requests, especially those involving wire transfers or changes to payment details.

Attackers may impersonate executives or use spoofed email addresses to make their messages seem legitimate. Always verify requests through a separate communication channel before taking action.

How do BEC scammers use phishing to compromise an email account?

BEC scammers often send phishing emails that look like they come from trusted contacts. These messages may ask you to click a link or download an attachment, which can install malware or steal your credentials.

Once they have access to your email account, scammers can monitor conversations and launch further attacks. Protect your account by using strong passwords and enabling multi-factor authentication.

What are the most common types of BEC scams targeting executives?

The most common types of BEC scams involve impersonation of executives, such as the CEO or CFO, to request urgent wire transfers or sensitive data. These scams rely on creating a sense of urgency and trust.

Attackers may also target finance teams with fake invoices or payroll diversion schemes. Training employees to recognize these tactics is key to preventing losses.

How can I prevent account compromise from a BEC attacker?

To prevent account compromise, use multi-factor authentication and regularly update your passwords. Monitor your email domain for unusual activity, such as logins from unfamiliar locations.

If you suspect a compromised account, act quickly to reset credentials and investigate the incident. Early detection can limit the damage caused by BEC attackers.

What security tools help defend against BEC email threats?

Effective security tools include advanced spam filters, malware detection, and real-time monitoring for suspicious activity. These tools can block many BEC email threats before they reach your inbox.

Regularly updating your security systems and training employees on social engineering techniques can further reduce your risk. Consider working with an IT provider to stay current with the latest defenses.

Who are the common targets of BEC, and why?

Common targets of BEC include finance teams, executives, and employees with access to sensitive data or payment systems. Attackers focus on those who can authorize wire transfers or share sensitive information.

By understanding who is most at risk, you can tailor your training and security measures to protect your business. Encourage staff to be cautious with any request involving money or sensitive data.