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Teams to Block Federated Communications with Trial Tenants

Teams to Block Federated Communications with Trial Tenants
Microsoft is moving to block federated communications with trial Microsoft tenants to cut off a potential exploitation route for attackers. The new block goes into force on July 29, 2024, and is controlled by the ExternalAccessWithTrialTenants setting in the tenant federation configuration policy. We’ve been saying for years that tenants should clamp down on federated chat. It seems that Microsoft now agrees.

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Office 365 for IT Pros

Office 365 for IT Pros is the world's best book about Office 365 architecture, management, and deployment. Written by a team of highly experienced Microsoft MVPs, Office 365 for IT Pros is refreshed monthly.

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