The helpdesk chat window is the breach

1. Opening Claim Microsoft Teams is being increasingly abused in helpdesk impersonation attacks. The platform is not the exploit. The trust model wrapped around it is. Attackers are not breaking Teams. They are operating inside a channel that the organization has already decided to trust before any message arrives. This is not a product vulnerability. It is a control placement failure. Identity verification was set at the point of joining the tenant. After that point, the conversation surface in