Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 ...

A bad security intelligence update causes Microsoft Defender to crash during Full and Quick Scans on some PCs. Upgrading to ...

The Nightmare-Eclipse and Microsoft saga continues with another major Windows Defender exploit following 'RoguePlanet.' ...

A bad update is causing Microsoft Defender to crash halfway through scans. Have you run into this bug on your PC, or is your ...

ShieldBreak is a claimed patch bypass for Defender flaw CVE-2026-50656, with a PoC tested on Windows 11 25H2 and Server 2025.

Microsoft is working on a security patch for the "ShieldBreak" zero-day vulnerability disclosed last week by security ...

Microsoft says a new Defender capability isolated a compromised device and stopped a ransomware attack in 128 seconds. Security experts explain what it means—and its limits.

Microsoft is developing a patch for the ShieldBreak Defender zero-day, which can let local attackers gain SYSTEM privileges ...

Learn how BitLocker, passkeys, Microsoft Defender, and other Windows 11 security features protect your data, accounts, apps, and devices.

This is the latest zero-day released by security researcher Nightmare Eclipse, despite Microsoft publicly threatening to take ...

If your PC is off during a scheduled Windows Security scan, it'll get skipped. Use this simple registry tweak to force scans ...

Microsoft is named a visionary leader in the 2026 Frost Radar for CWPP, recognized for unified runtime security with ...