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, ...

Microsoft’s April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company’s largest ...

Windows Security (formerly Windows Defender) is the built-in antivirus tool bundled with the operating system. It has saved ...

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

All Windows PCs come with a built-in security feature called Windows Defender Application Control (WDAC), which helps prevent unauthorized software from running by allowing only trusted applications.

Windows has a zero-day vulnerability that allows attackers to escalate their privileges. A patch is not yet available.

Microsoft updates Defender in Windows install media to block threats during setup and close early security gaps.

Windows Defender, now known as Microsoft Defender Antivirus, has significantly improved over the years, making it a robust built-in security solution for Windows users. However, the question remains ...

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

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 ...