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

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 ...

A security vulnerability was recently discovered in Microsoft Defender, the first-party Windows 11 antivirus tool used by millions. Attackers can exploit this vulnerability to gain elevated system ...

Microsoft Defender is detecting legitimate DigiCert root certificates as Trojan:Win32/Cerdigent.A!dha, resulting in ...

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

Microsoft has released the final version of security configuration baseline settings for Windows 11, version 22H2, downloadable today using the Microsoft Security Compliance Toolkit. "This release ...

CVE-2026-32202 actively exploited after April 27 advisory fix, exposing NTLMv2 hashes via zero-click SMB authentication.

Microsoft is promoting Windows 11’s built-in Defender as “usually sufficient” for most users, citing strong independent test ...

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