Announcement ID | MC805200 | Published Date | 06-25-2024 | |
Service | Microsoft Teams | Last Updated | 06-25-2024 | |
Category | Stay informed | Expiration Date | 08-30-2024 | |
Roadmap ID | Action Required by Date | |||
Tags | New feature, User impact, Admin impact |
Summary |
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Microsoft Teams is introducing a new admin control to block external access with Teams trial-only tenants to protect against malicious activities. The default setting will block such access 30 days after rollout, requiring admin action to allow federation with trial tenants. General availability is now, with blocking enforced from July 29, 2024. Admins should review settings and use PowerShell to configure the desired access level. |
More Information |
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Coming soon to We are introducing a new admin control to enable you to block external access (federation) with Teams trial-only tenants. Some malicious actors have used free Teams trials to launch phishing or abuse attacks against Teams users. With this setting you can add another layer of protection for users against some of these attacks. By default, this new setting will block external access with trial-only tenants 30 days after the rollout is complete and will require explicit action from you if you wish to continue to federate with trial tenants. When this will happen:General availability (Worldwide): Available now. Blocking external access with trial-only tenants based on this setting will occur on July 29, 2024. If you take no action, the default value (Blocked) will be applied. How this will affect your organization:Teams PowerShell will support a new Tenant Federation setting Important Notes
What you need to do to prepare:Review your settings for external access to determine if you need to change the default value for this new setting. To change this setting, install the latest PowerShell package (6.4.0) and use the
You may want to notify your admins about this change and update any relevant documentation as appropriate. |