GreatXML BitLocker 0-Day Bypass Exploited Through Defender Offline Scan

A newly disclosed zero-day vulnerability dubbed “GreatXML” allows attackers to completely bypass BitLocker encryption on Windows machines, and the attack vector is one few would suspect: Microsoft Defender’s own Offline Scan feature. The vulnerability was discovered by security researcher NightmareEclipse, who went from initial observation to a working proof of concept in only four hours. […]

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