How the scam works
The attacker compromises or imitates an e-mail account, claims to be a partner, vendor or employee, and sends apparently legitimate payment instructions. They normally ask for an urgent payment, change of IBAN, an “update” of vendor’s details or a payment to a “newly opened account” which is, of course, fake.
They often use very similar domains (e.g. @company.com.hr instead of @company.hr), make “minor” errors such as mixed up letters (@frim.hr instead of @firm.hr) or use visually similar but technically different symbols and typosquatting (e.g. “I” instead of “l” in the case of paypaI.com or “corn” instead of “com” – for example, cornpany.com), which make it difficult to detect the scam.
How to identify and prevent
Always make independent verification via telephone or official internal channels, especially if the matter involves urgency or change in a vendor’s details. Carefully examine the sender’s domain – only one different letter can mean that the account is fraudulent. Always abide by the 4-eyes rule or use multiple authorizations for all outgoing payments. Use MFA (multifactor authentication) to access e-mail systems and provide your employees with social engineering education on a regular basis.
