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

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

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

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

PCWorld reports Microsoft patched a record 206 security flaws in June 2024, including 19 critical remote code execution vulnerabilities affecting Windows kernel and HTTP services. One vulnerability in ...

BlueHammer became public on April 2 in an unusual fashion. A researcher using the names Chaotic Eclipse and Nightmare Eclipse ...

Update: Added statement from Microsoft to the end of this article. A security researcher has released a new Microsoft Defender zero-day exploit named "RoguePlanet" just hours after Microsoft fixed two ...

Record Patch Volume: The June 2026 Patch Tuesday marked Microsoft's largest security update, fixing up to 208 vulnerabilities across its platforms. Defender Exploit Streak: Microsoft Defender has been ...

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

CISA confirmed on Monday that ransomware gangs are now exploiting a Microsoft Defender privilege escalation vulnerability, dubbed BlueHammer, that has previously been abused in zero-day attacks.

Official support for Windows 10 has ended, and its security certificates are expiring. Your system is at risk, and Microsoft ...

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