Administrators can use teams policies for controlling what users can do in Microsoft Teams. In this blog, I’ll show that these policies are applied only in client and thus can be easily bypassed.
http://o365blog.com/post/teams-policies/
origin - https://www.pipiscrew.com/2020/10/abusing-teams-client-protocol-to-bypass-teams-security-policies/ abusing-teams-client-protocol-to-bypass-teams-security-policies