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Check Point — Archive · Vol 334 Issue 3

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Check Point, Thursday, January 22nd, 2026

Attackers Continue To Target Trusted Collaboration Platforms: 12,000+ Emails Target Teams Users

Vol 334 · Issue 3 · 2026-01-22

This report describes a phishing campaign in which attackers abuse Microsoft Teams functionality to distribute phishing content that appears to originate from legitimate Microsoft services. The attack leverages guest invitations and phishing-themed team names to impersonate billing and subscription notifications, encouraging victims to contact a fraudulent support phone number.

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Attackers Continue To Target Trusted Collaboration Platforms: 12,000+ Emails Target Teams Users