A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows ...

Microsoft has patched RoguePlanet—a Defender zero-day vulnerability that lets hackers gain full access to your PC—via Windows ...

Microsoft Patches RoguePlanet Defender Flaw That Can Grant SYSTEM Privileges | Read more hacking news on The Hacker News ...

Microsoft has tackled yet another zero-day vulnerability published by a disgruntled security researcher with a vendetta ...

Do you still need third-party antivirus on your Windows PC?

The newly disclosed Windows Defender flaw, tracked as CVE-2026-50656, could let attackers escalate privileges on fully ...

A security researcher built a program that the OS sees as an antivirus Since two AV programs can't run at the same time, Windows Defender turns itself off Previous iteration was taken down for ...

All Windows PCs come with a built-in security feature called Windows Defender Application Control (WDAC), which helps prevent unauthorized software from running by allowing only trusted applications.

Microsoft Defender offers great protection from malware -- but there are other online threats you might want to consider, too.

Make Windows 11 feel faster with nine cleanup tips for startup apps, storage, background processes, updates, malware scans, ...

Best Antivirus Best Antivirus Software for Windows PCs in 2026 Discover the highest ranked antivirus programs for Windows 10 and 11. See whether you need to save or splurge to protect your device, ...