A newly highlighted flaw in Microsoft’s cross-tenant collaboration model shows that once a user accepts a guest invitation in Teams, their Defender for Office 365 protections are dropped entirely, ...

Microsoft Teams guest chat feature creates unprotected attack vector for malware and phishing Guests rely on host’s security, enabling malicious actors to bypass usual protections Businesses advised ...

If your staff accepts an outside invitation to chat in Microsoft Teams, they might be walking straight out of your company’s digital security zone. A new report from Ontinue is raising major concerns ...

Discover how to use Microsoft Teams for business with this complete guide. Learn setup, meetings, collaboration, and pro tips ...