Threat actors have been exploiting the BlueHammer Microsoft Defender vulnerability as a zero-day to gain System privileges.
CISA has ordered U.S. federal agencies to patch a Microsoft Defender privilege escalation flaw (dubbed BlueHammer) that has ...
Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...
New PoC shows how Microsoft Defender can be tricked into rewriting malicious files into protected locations, enabling ...
Windows 11 users may not need third-party antivirus, according to Microsoft, which says Defender delivers strong default protection for everyday use.
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