CyberSecurity News
CISA: Windows BlueHammer flaw now exploited by ransomware gangs
BleepingComputer
· June 30, 2026AI summary
CISA has confirmed that ransomware groups are exploiting a vulnerability in Microsoft Defender known as BlueHammer. This flaw allows for privilege escalation and has been previously used in zero-day attacks. Ransomware gangs are now taking advantage of this vulnerability.
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