Updated January 2, 2024: We have updated the rollout timeline below. Thank you for patience.
For meetings that require heightened confidentiality, end-to-end encryption (E2EE) is an extra layer of security that encrypts data at its origin and decrypts it at its destination. Only audio, video, and video-based screen sharing is end-to-end encrypted. Apps, avatars, reactions, chat, and Q&A are not end-to-end encrypted.
We had launched end-to-end encryption (E2EE) for meetings with 50 participants in February 2023. We are increasing the meeting size to 200 participants. We support:
- One can schedule an end-to-end encrypted meeting from desktop (Windows and Mac) and mobile (iOS or Android).
- To join an end-to-end encrypted meeting
- One can join an end-to-end encrypted meeting from desktop (Windows or Mac) or mobile (iOS or Android) or Teams Room Device (Windows or Surface Hub).
- For the 200-participant meeting, the first person joining should be from desktop (Windows or Mac) or mobile (iOS or Android).
- All other platforms are blocked from joining an end-to-end encrypted meeting.
[When this will happen:]
- Standard Release: We will begin rolling out late October and expect to complete by early November.
- GCC Release: We will begin rolling out late October and expect to complete by early November.
- GCCH Release: We will begin rolling out early November and expect to complete by early January 2024 (previously mid-December).
- DoD Release: We will begin rolling out late November and expect to complete by early January 2024 (previously mid-December).
[How this will affect your organization:]
With this update, end-to-end encrypted meetings can have a meeting size up to 200 participants instead of 50 participants.
[What you need to do to prepare:]
Please inform your users that now end-to-end encrypted meetings support larger meeting size (i.e.,200 participants).
For more details how to use the feature, you can refer to: Use end-to-end encryption for Teams meetings – Microsoft Support
