Business email compromise is one of the most costly and least flashy cyberattacks out there. No malware, no ransom note, just a convincing email that gets someone to wire money or hand over credentials. Here's how it actually works, and what stops it.
An attacker compromises or spoofs a real email account, usually an executive's or a vendor's, and studies how your business actually communicates.
A convincing request lands, often about an invoice or a wire transfer, timed to look routine and urgent at once.
Multi-factor authentication, email authentication controls, and a simple verification step before any wire or credential change.
Before wiring money or changing payment details based on an email, pick up the phone and confirm it with the person directly, using a number you already have on file, not one from the email itself. It's the single most effective, and least technical, defense against BEC.
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