More than 400 incidents in which attackers abused Microsoft Teams external chats to impersonate IT support, obtain remote access, and deliver malware. Researchers identified recurring tenant names, deceptive display names, remote administration tools, and payload infrastructure across incidents. Teams federation, enabled by default, allows communication between organizations when both tenants permit external access. Attackers exploit […]
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Fake Microsoft Teams IT Support Messages Lead to Remote Access and Malware Infections