Microsoft: Teams increasingly abused in helpdesk impersonation attacks
Microsoft has issued a warning that threat actors are increasingly using Microsoft Teams to impersonate IT helpdesk staff, tricking employees into granting access to enterprise networks. Attackers leverage legitimate tools for access and lateral movement, making detection difficult. Developers and enterprise users should be cautious of unsolicited Teams messages requesting credentials or remote access, and organizations should review their external Teams communication policies.
Curated Apr 20, 2026 by the ahackaday team./Sources verified./Brief grounded in 1 source.