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 ...

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, ...

Picture this: you’re collaborating with an external partner on a critical project, sharing files and ideas seamlessly through Microsoft 365. Everything is running smoothly—until you pause to consider ...