A bad security intelligence update causes Microsoft Defender to crash during Full and Quick Scans on some PCs. Upgrading to Security Intelligence Update v1.457.236.0 resolves the issue.

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

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

If you get this alert on your PC, first, double-check to ensure that your Microsoft Defender Antivirus isn't actually turned ...

A Dec. 12 posting to Microsoft’s security update guide has confirmed that a Windows Defender vulnerability, rated as critical according to Microsoft itself, could have enabled an attacker who ...

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 ...