Microsoft Teams to Add Deepfake Detection and Impersonation Protection

Microsoft is developing support for third-party deepfake detection tools and a new impersonation protection feature for Teams meetings. Both changes are listed as in development on the Microsoft 365 Roadmap and are expected to reach general availability in November after a worldwide rollout.

Microsoft says Teams will integrate with supported providers to surface and act on deepfake detection signals. Certified third-party services will analyze meeting audio and video for signs of synthetic or manipulated media and send signals to Teams, where users can access in-meeting experiences and controls.

The impersonation protection feature will warn users about potential attempts by meeting organizers or participants to pose as someone else. Teams will show warnings and risk indicators to help users recognize suspicious identities when joining or taking part in a meeting.

The features add to a series of Teams security changes. Microsoft said in December that admins would be able to lock external users through the Defender portal starting in January. It has also added QR-code blurring for codes sent by external senders and began rolling out a policy in August to automatically block identified external bots from meetings. In September, Microsoft announced that users would be able to report suspicious guest invitations directly in Teams starting in November.