A researcher released ShieldCrash on September 8, claiming it bypasses Microsoft's Defender fix for flaw CVE-2026-69414.

Want to know how to enable Windows Defender in Windows 11? In this easy step-by-step tutorial, I’ll show you how to turn on Windows Defender Antivirus and check your Windows Security settings to help ...

The anonymous researcher released a new proof-of-concept exploit called ShieldCrash, claiming it bypasses Microsoft's patch for the ShieldBreak Defender vulnerability – the latest in a string of ...

The glitch, which Microsoft says it working to fix, creates an attacker opportunity by convincing users to ignore critical cybersecurity alerts.

An anonymous security researcher known as Nightmare Eclipse has released a new Microsoft Defender zero-day exploit named ...

Microsoft confirmed a bug in recent Defender updates that's triggering incorrect "antivirus disabled" warnings across Windows 10, 11, and Server.

The company added both problems to its Windows release health dashboard on August 28. Microsoft has confirmed the Defender ...

A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows machines to write files large enough to completely consume available disk ...

The majority of the updates that come through Windows Update are for Windows Defender, and for good reason. Windows Defender helps make your antimalware and other security protections stronger.