A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...

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

The now presented proof-of-concept exploit with the title “RedSun” allows attackers to gain extensive system privileges under ...

The exploit uses an insecure behavior of Windows Defender and a file API to secure system rights. It is still unpatched.

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 11 hacked three times on day one of PWN2OWN. Update, May 17, 2025: This story, originally published May 16, has been updated with news of another successful Windows 11 hack at the Pwn2Own ...

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

New Windows privilege escalation vulnerability added to CISA catalog affects Windows 11 and Server 2025 systems.

IT administrators have learned to fear a certain type of Tuesday, and February 11 was one of those days. This time, Microsoft ...

Windows 11’s first big update of 2026 was supposed to harden security and smooth out rough edges. Instead, it has left some users staring at blank desktops, stalled shutdown screens, and boot loops ...

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