Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are ...

RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch ...

Windows 11 security is now complete, with Defender replacing third-party antivirus through built-in real-time and behavioral ...

Although the team with Microsoft moved swiftly to patch the BlueHammer vulnerability, other exploits still threaten Microsoft ...

A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit ...

In a blog post, Microsoft says Defender is enough for most Windows 11 users. No extra antivirus needed if you keep defaults ...

The Huntress SOC is observing the use of Nightmare-Eclipse's BlueHammer, RedSun, and UnDefend exploitation techniques. Investigation by: @wbmmfq, @Curity4201, + @_JohnHammond 🧵👇 ...

The BlueHammer, RedSun and UnDefend flaws put all Windows users at risk since they turn the operating system’s antivirus ...

Windows 11 users may not need third-party antivirus, according to Microsoft, which says Defender delivers strong default protection for everyday use.

This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in ...

Microsoft fixes 169 vulnerabilities including exploited SharePoint CVE-2026-32201, prompting CISA remediation by April 28, ...

CVE-2026-34040 lets attackers bypass some Docker authentication plugins by allowing an empty request body. Present since 2024, this bug was caused by a previous fix to the auth workflow. In the ...