YellowKey: An Unexpected Backdoor into BitLocker, and Why You Should Be Paying Attention (opens in new tab)

On May 12, 2026, a researcher operating under the handles Chaotic Eclipse and Nightmare-Eclipse dropped a working proof-of-concept on GitHub for a Windows zero-day called YellowKey. In short, it lets anyone with brief physical access to a BitLocker-protected Windows 11, Windows Server 2022, or Windows Server 2025 machine pop a command prompt with full read […]