A security vulnerability was recently discovered in Microsoft Defender, the first-party Windows 11 antivirus tool used by ...
A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...
RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch ...
1don MSN
Over 1 billion Windows users at risk after disgruntled security research leaks Defender zero-days
The BlueHammer, RedSun and UnDefend flaws put all Windows users at risk since they turn the operating system’s antivirus ...
New PoC shows how Microsoft Defender can be tricked into rewriting malicious files into protected locations, enabling ...
A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...
Microsoft updates Defender in Windows install media to block threats during setup and close early security gaps.
Microsoft’s April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company’s largest ...
Researcher “Chaotic Eclipse” discloses new Microsoft Defender zero‑day dubbed RedSun Flaw enables local privilege escalation ...
Windows Security (formerly Windows Defender) is the built-in antivirus tool bundled with the operating system. It has saved ...
The Huntress SOC is observing the use of Nightmare-Eclipse's BlueHammer, RedSun, and UnDefend exploitation techniques. Investigation by: @wbmmfq, @Curity4201, + @_JohnHammond 🧵👇 ...
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