BlueHammer became public on April 2 in an unusual fashion. A researcher using the names Chaotic Eclipse and Nightmare Eclipse released exploit details before Microsoft had a...

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

A Microsoft Defender vulnerability tracked as BlueHammer and CVE-2026-33825 is being exploited in ransomware attacks