Vendor Impersonation Fraud Prevention Checklist for Finance and Security Teams

Vendor impersonation fraud is a form of business email compromise in which attackers pose as legitimate suppliers to redirect payments by changing banking details, increasingly using AI-generated emails, cloned voices, and synthetic video to make requests appear credible. The article notes that attacks commonly exploit familiar invoice threads, urgent payment requests, lookalike domains, compromised vendor accounts, fake portals, and multichannel communication across email, calls, messaging, and video meetings, citing the reported $25 million Arup deepfake incident as an example of the risk. It recommends formal verification workflows for payment-detail changes, callbacks using established contact information, staff training, dual approval controls, segregation of duties, vendor master-file reviews, rapid bank escalation, evidence preservation, and limiting publicly available operational information. While email-authentication measures such as SPF, DKIM, and DMARC can reduce direct spoofing, they do not address compromised accounts, voice cloning, or synthetic media, so the article advocates combining financial controls with independent identity and media verification. It presents Resemble AI’s audio, video, image, meeting, browser, and speaker-verification products as tools intended to help teams detect deepfakes and investigate suspicious vendor communications before high-risk payments are approved.

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