Microsoft pushed emergency patches this week for two zero-day vulnerabilities in Windows Defender, the antivirus software ...
Microsoft pushed out-of-band patches on May 21, 2026, for two actively exploited Windows Defender zero-days — one that lets a ...
Microsoft this week released patches for two vulnerabilities in Defender, warning they have been exploited in the wild as ...
A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, dubbed "RedSun," in the past two weeks, protesting how the company works with ...
IT security researchers are reporting internet attacks on the partly unpatched security vulnerabilities BlueHammer, RedSun, and UnDefend. These affect Windows Defender and allow, for example, the ...
Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. There are a number of antivirus, anti-malware, and internet ...