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YellowKey - Windows 11 Bitlocker bypass just released by security researcher

 
General (Technical, Procedural, Software, Hardware etc.)
Last Post by mrkirksey 3 weeks ago
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 mrkirksey
(@mrkirksey)
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Joined: 8 years ago
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Topic starter 13/05/2026 6:35 pm   [#20682]

A security researcher who was angry with Microsoft, just released a method to bypass Bitlocker, giving you full access to the bitlocker encrypted drive.  This works with TPM/TMP-PIN as well.  I was hesitant to drop this here, but this community will find it sooner than later.  

Here is an article:   https://www.bleepingcomputer.com/news/security/windows-bitlocker-zero-day-gives-access-to-protected-drives-poc-released/

The methodology has been tested and verified by other researchers.  This will not work for Windows 10 systems.  Only Windows 11 and some server editions.

The original researcher post is here with the methodology: https://github.com/Nightmare-Eclipse/YellowKey



   
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bitlocker backdoor exploit vulnerability
 mrkirksey
(@mrkirksey)
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Joined: 8 years ago
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Topic starter 13/05/2026 6:52 pm  

Another article.   Just search for "yellowkey bitlocker" in your favorite engine and there are a lot of articles from today.  The bypass was released yesterday 5-12-26.

 

https://www.tomshardware.com/tech-industry/cyber-security/microsoft-bitlocker-protected-drives-can-now-be-opened-with-just-some-files-on-a-usb-stick-yellowkey-zero-day-exploit-demonstrates-an-apparent-backdoor



   
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Topic Tags:  bitlocker (10) , backdoor (1) , exploit (1) , vulnerability (1) ,
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