Summary
A researcher released two unpatched zero-day vulnerabilities, YellowKey and GreenPlasma, which allow attackers to bypass BitLocker encryption with physical access to the devices and escalate system privileges on Windows 11 and Server environments.
Take Action:
If you use Windows 11 or Windows Server 2022/2025, set a custom BitLocker PIN and a strong BIOS password to block unauthorized booting from USB or external media. Educate users to limit physical access to their devices until Microsoft releases official fixes.
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This article was originally published on BeyondMachines
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