Controls preventing attackers from impersonating trusted domains and users in email.
Anti-spoofing measures prevent attackers from impersonating trusted senders in email. Technical anti-spoofing uses SPF, DKIM, and DMARC to authenticate legitimate email and identify forgeries. Email security platforms add protection against lookalike domains, display name spoofing, and impersonation of specific users. Microsoft Defender includes anti-spoofing and impersonation protection targeting VIPs and specific users. Comprehensive anti-spoofing combines authentication, impersonation detection, and user awareness.
Why It Matters
The DSC Perspective:
Spoofing underlies most email attacks—phishing, BEC, and fraud all rely on impersonation. Layer technical controls (DMARC, impersonation protection) with user awareness for comprehensive anti-spoofing defence.