Security Defaults
UpdatedAs part of enabling security defaults, administrators should revoke all existing tokens to require all users to register for multifactor authentication. This revocation event forces previously authenticated users to authenticate and register for multifactor authentication. This task can be accomplished using the [Revoke-MgUserSignInSession](/powershell/module/microsoft.graph.users.actions/revoke-mgusersigninsession) cmdlet in the Microsoft Graph PowerShell SDK.
