How to protect your organization from business email compromise

**Executive summary:** This report explains Business Email Compromise (BEC), a targeted social-engineering fraud in which attackers impersonate trusted individuals or use compromised accounts to coerce payments, steal data, or gain access; it outlines common tactics (executive impersonation, fraudulent invoices, payroll diversion), indicators, impacts (noting large annual losses), and recommended Zero Trust defenses such as email authentication (SPF/DKIM/DMARC), MFA, employee training, strict payment approval processes, and continuous monitoring.