Microsoft Teams Impersonation Campaign Enables Unauthorized Access Through RMM Abuse

**Executive summary:** A widespread phishing campaign impersonating Microsoft Teams uses convincing email lures and fake Teams pages to deliver a signed Windows installer that deploys a remote access tool configured to phone home to attacker-controlled relays; the attackers leverage compromised legitimate sites and cloud hosting, maintain long-lived infrastructure, and implement robust persistence and credential-harvesting techniques (credential provider DLL and LSA package) to sustain and expand access.