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.

Microsoft actually wanted to close a security gap, but a current update now apparently partially paralyzes Windows Defender.

Threat actors can take advantage of a weakness that affects Microsoft Defender antivirus on Windows to learn locations excluded from scanning and plant malware there. The issue has persisted for at ...

Windows Defender is the default antivirus on Windows PCs, protecting them against threats such as malware, viruses, and more. While Windows Defender keeps track of all its actions to safeguard your PC ...

If Windows 11 is sending alerts that you need to turn on virus protection and your PC is unprotected, don't worry.

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 ...