A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...

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

Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...

In a blog post, Microsoft says Defender is enough for most Windows 11 users. No extra antivirus needed if you keep defaults ...

Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or ...

Defender is 'usually sufficient,' it says in a blog post that might rile up the antivirus industry.

A security researcher has published a working exploit for a Microsoft Defender security flaw that affects Windows 10, 11, and ...

A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit ...

In a proof-of-concept, a security researcher demonstrated how the Windows Security Center API can be used to block the scans by Microsoft’s built-in antivirus tool. Windows Defender can be tricked ...

Discover the highest ranked antivirus programs for Windows 10 and 11. See whether you need to save or splurge to protect your ...

Microsoft Defender isn't enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free ...