Microsoft Adds Fraud Detection to Teams Calls

Microsoft is rolling out a new fraud detection feature called Brand Impersonation Protection for Teams Calling to help users avoid VoIP scams.

New Fraud Detection Feature

The new feature aims to identify potential brand impersonation during VoIP calls on Teams. It checks incoming calls from unfamiliar external contacts and flags high-risk or suspicious interactions for users. The default-enabled protection seeks to reduce the chances of social engineering attacks.

Release Timeline and Scope

• Microsoft plans to launch the feature to target release customers by mid-February 2026.
• Brand Impersonation Protection will be enabled by default for all Teams users.
• Organizations should educate staff about these new warnings to enhance security practices.

Market Impact

The move is expected to bolster security for Teams calling, offering users greater protection from scams. This initiative also reflects Microsoft's ongoing commitment to safeguard its communication platforms through advanced anti-fraud measures.

Update: 17 Jun 2026