MC1219793 | (Updated) Brand impersonation protection for Teams Calling

Service

Microsoft Teams

Last Updated

2026-05-05T16:43:55.74Z

Published

2026-01-21T00:38:47Z

Message ID

MC1219793

Updated May 5, 2026: We have updated the timeline. Thank you for your patience. [Introduction] Brand Impersonation Protection for Teams Calling adds proactive safeguards against fraudulent or deceptive external callers who attempt to appear as trusted organizations. This helps reduce social-engineering risks and improves tenant security when users receive first-contact external calls. This update aligns with Microsoft’s ongoing investments in caller identity protection and secure collaboration. This message is associated with Microsoft 365 Roadmap ID 543239. [When this will happen:] Targeted Release: Rollout will begin mid-May 2026 (previously early May) and is expected to complete by late M...

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