Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates.

Microsoft has a new Defender anti-virus update for Windows 11 and 10 images. The new update patches several flaws.

Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 access violation errors on some affected systems. Microsoft Defender is a ...

BigDiskBuster can block Microsoft Defender updates by filling disk space, leaving detection content stale; no patch or advisory exists.

Microsoft has introduced a powerful new security capability in Defender for Endpoint aimed at blocking communications from and to undiscovered devices. The goal is to reduce the risk of cyberattacks ...

Four toggles, one BIOS setting, zero problems so far.

BigDiskBuster is a new Microsoft Defender zero-day that can block platform and signature updates across supported Windows versions.

Microsoft expands AI security with Defender local-agent discovery and Purview controls that can block sensitive data headed ...

A bad Microsoft Defender update is quarantining VLC's cache, causing severe startup delays. Here's how to fix it.

Microsoft Defender Antivirus, formerly known as Windows Defender, is a built-in antivirus and antimalware service that comes with Windows 10, Windows 11 and some versions of Windows Server. In its ...