The BEC (Business Email Compromise) fraud, also known as CEO fraud, is a scam in which an attacker impersonates a trusted figure within a company. The attacker aims to convince someone—typically from management, finance, or executive leadership—to initiate a transfer, share sensitive information, or modify banking data.
Unlike other attacks, this one usually does not involve a virus, a suspicious file, or an odd link. Instead, attackers rely on deception. They use emails that appear legitimate, a convincing tone, and an urgent situation. As a result, recipients may act without careful thought.
How attackers operate
A BEC attack generally follows this pattern:
First, attackers study the company and its key personnel. They analyze roles, hierarchies, suppliers, and routines.
Next, attackers impersonate an identity. They may create a domain nearly identical to the real one. In some cases, they compromise a legitimate account using stolen credentials.
Then, attackers craft a credible and urgent message. The email typically requests a transfer, a change of bank account, or another sensitive action that “cannot wait.”
The objective is to bypass internal procedures. Attackers encourage victims to act alone and avoid verification with others.
Finally, once the victim makes the payment, the funds disappear. Attackers usually transfer the money to foreign accounts and move it multiple times to hide its trail.
Common warning signs
An email linked to BEC fraud often includes:
- Urgent requests that bypass established processes and controls
- Unexpected changes in bank account details
- Messages that invoke confidentiality or authority
- Subtle errors in the sender’s address or domain
- Instructions that are not typically communicated via email
If something seems off, it probably is.
How to protect your company from BEC fraud
To avoid falling victim to such scams, it is essential to combine advanced technology, robust training, and solid internal procedures:
- Utilize advanced email security solutions (Microsoft Defender for Office 365, Google Workspace ATP, Proofpoint, Mimecast, or Barracuda).
- Ensure proper configuration of SPF, DKIM, and DMARC.
- Train employees and regularly conduct phishing simulations.
- Monitor and investigate suspicious activities using SIEM and SOAR tools.
- Verify any payment orders or financial changes through an alternative channel.
- Implement dual control for payments to prevent a single person from authorizing a complete transaction.
The human factor: why BEC is so effective
BEC fraud does not rely on breaching systems, but on exploiting individuals. This is what makes it both effective and extremely dangerous. However, with the right combination of technology, well-defined procedures, and continuous awareness training, organizations can significantly reduce their exposure and detect these attacks before financial damage occurs.
If you would like to explore how these measures can be applied in your organization or learn more about effective strategies to prevent BEC fraud, our team would be happy to share insights and best practices.
