Teams calls are about to get a lot harder to fake
Microsoft will roll out Brand Impersonation Protection in Teams Calling from mid-May 2026, warning users about suspicious inbound VoIP calls impersonating trusted brands.
Microsoft Teams Calling is gaining Brand Impersonation Protection, which evaluates inbound VoIP calls from first-time external callers for signs of brand impersonation and displays warnings before users answer high-risk calls. The feature rolls out from mid-May 2026 with completion expected by late May 2026, is enabled by default, and requires no administrative action. Users can accept, block, or end flagged calls, and alerts may continue throughout a call if suspicious activity persists. Microsoft recommends preparing helpdesk teams and updating security awareness materials ahead of deployment.
- Feature evaluates inbound VoIP calls for brand impersonation and warns users before answering.
- Rolls out mid-to-late May 2026, enabled by default, no admin action required.
- Users can accept, block, or end flagged calls; alerts may persist during calls.
From the original article
1 min read at helpnetsecurity.com
Microsoft Teams Calling is getting a new feature that will warn users about suspicious inbound VoIP calls from first-time external callers who might be impersonating trusted brands. Brand Impersonation Protection is scheduled to roll out in mid-May 2026 and is expected to complete by late May 2026. The company says the feature aims to reduce social engineering risks and strengthen tenant security.
By @helpnetsecurity · helpnetsecurity.com
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