This brief explains how Proofpoint defends organizations from impersonation attacks, including BEC, domain spoofing, and supplier compromise. The platform implements DMARC to authenticate outbound email, integrates with inbound protections, and uses AI to flag compromised supplier accounts. It also monitors for malicious lookalike domains and facilitates takedowns. Additionally, Proofpoint secures application-generated emails from SaaS partners like Workday or Salesforce to prevent abuse. With holistic visibility into domain threats and risky suppliers, organizations can protect brand reputation, ensure trust in communications, and reduce financial losses tied to impersonation scams.

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