Microsoft just announced via a Windows Experience blog post that the company is now using AI to identify potential security ...

A security researcher using the "Nightmare Eclipse" handle has released a Windows zero-day exploit dubbed LegacyHive that ...

PCWorld reports on the ‘BlueHammer’ zero-day vulnerability that allows attackers to potentially take over Windows computers through privilege escalation. A frustrated security researcher published the ...

On April 2, 2026, a security researcher using the name Chaotic Eclipse published a blog post stating that they were "doing it again." Under this warning, a link to a GitHub account page for a user ...

Microsoft Defender RoguePlanet vulnerability has been patched after a zero-day flaw was disclosed following the June 2026 ...

The leak online of exploit code for an apparent Windows zero-day flaw dubbed "BlueHammer" could be the sign of a larger issue that security researchers face when collaborating with Microsoft on ...

Windows Defender zero-day CVE-2026-50656 — known as RoguePlanet — has been patched by Microsoft 29 days after researcher ...

Update 5/21: Since this article was released, recommend mitigations for YellowKey and other attacks have been released, as well as a full patch for BlueHammer. A cyber security expert that goes by the ...

LegacyHive is a PoC for a Windows ProfSvc privilege escalation flaw that works after the July 2026 update, but the public build needs extra credential ...

PCWorld reports on the ‘RedSun’ vulnerability in Microsoft Defender affecting Windows 10, 11, and Server systems that allows attackers to gain administrative privileges. Security researcher Chaotic ...

Microsoft is using AI and MDASH to find Windows vulnerabilities faster and improve security update reliability.