Windows Defender has several security settings, including some you need to switch on to get the utmost protection. Here's why.

Microsoft patched two actively exploited Defender zero-days affecting Windows systems and security components.

Microsoft pushed out-of-band patches on May 21, 2026, for two actively exploited Windows Defender zero-days — one that lets a ...

Microsoft pushed emergency patches this week for two zero-day vulnerabilities in Windows Defender, the antivirus software ...

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active ...

While there weren’t any genuine zero-day vulnerabilities to patch in May’s Patch Tuesday update, the fallout since then has ...