Millions of Teams users face email hijacking risk from attackers exploiting legitimate collaboration tools with clever social ...

Signed, side loaded and compromised. That’s how security researchers at the Ontinue Cyber Defence Centre have described a sophisticated multi-stage attack that starts with a Microsoft Teams message ...

A critical flaw in a major Microsoft document storage tool is hitting the organizations least able to defend themselves, security researchers and incident responders tell Axios. Why it matters: ...