Microsoft Confirms Windows Defender Flaw That Could Give Attackers Full SYSTEM Access

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

Microsoft scrambles to patch a Defender security flaw called RoguePlanet

A week ago, the security researcher who goes by “Nightmare Eclipse” published information about RoguePlanet, a zero-day security vulnerability in Microsoft’s Defender security program. The ...
Forbes

2 New Microsoft Defender Zero-Days Exploited—Patch Now Rolling Out

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Microsoft and CISA confirm Defender zero-days exploited in the wild. Microsoft has started ...
Windows Report

CISA Says Microsoft Defender BlueHammer Flaw Is Now Used in Ransomware Attacks

CISA says ransomware gangs are exploiting Microsoft Defender’s BlueHammer flaw, patched in April 2026 after zero-day reports.
Tom's Hardware on MSN

Windows Defender 'BlueHammer' vulnerability now exploited as part of malware campaigns

Windows Defender "BlueHammer" vulnerability now exploited as part of malware campaigns — event demonstrates lack of security ...

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

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

Is Microsoft Defender Enough for Antivirus Protection? It Depends

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