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

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

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

Microsoft is trying to fix the RoguePlanet zero-day vulnerability impacting Defender on Windows 11 and Windows 10.

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

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

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.

A zero-day vulnerability in Microsoft Defender lets attackers gain full system access on up-to-date Windows 10 and 11 PCs. No ...

Oligo Cyber Security Ltd. has a core belief that runtime is the ground truth for protecting critical systems. It has backed that up with a new security solution to halt exploit attempts at the ...

A new Windows zero-day reportedly bypasses BitLocker, adding pressure on Microsoft as researchers debate the exploit’s real-world impact.

A new Microsoft Defender zero-day called RoguePlanet reportedly grants SYSTEM privileges on fully patched Windows 10 and Windows 11 devices.

Among other things, a critical kernel vulnerability threatens Windows 11. Microsoft is also closing zero-day vulnerabilities that became known at the end of May.