Tag: Get-CsTenantFederationConfiguration

Teams released a new version of their PowerShell module on July 19. The new module contains WAM support and cmdlets to limit federated chat for specific users and tenants. The new controls are welcome, but it’s a sad state of affairs that to configure the settings you must install a new version of a module that doesn’t work so well alongside other Microsoft 365 modules.

Microsoft is moving to block federated communications with trial Microsoft 365 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.