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

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

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

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

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

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

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

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

Arctic Wolf says Anubis affiliates abused RMM tools, VPN logins, RDP, PsExec, and cloud-transfer tools before ransomware ...

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.

Microsoft on Tuesday released fixes for two high-severity zero-days that were disclosed by a researcher who has been locked in a testy beef with the software giant.