Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or ...
A security vulnerability was recently discovered in Microsoft Defender, the first-party Windows 11 antivirus tool used by ...
RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch available.
A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit ...
Chaotic Eclipse is at it again, this time releasing a zero-day for Microsoft Defender.
A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...
New PoC shows how Microsoft Defender can be tricked into rewriting malicious files into protected locations, enabling ...
Windows Security (formerly Windows Defender) is the built-in antivirus tool bundled with the operating system. It has saved ...
Microsoft’s April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company’s largest ...
The Huntress SOC is observing the use of Nightmare-Eclipse's BlueHammer, RedSun, and UnDefend exploitation techniques. Investigation by: @wbmmfq, @Curity4201, + @_JohnHammond 🧵👇 ...
Microsoft updates Defender in Windows install media to block threats during setup and close early security gaps.