There used to be a bug where bitlocker would rely on the firmware's encryption functionality if it was there, and there were cases of firmware with a literal "i

There used to be a bug where bitlocker would rely on the firmware's encryption functionality if it was there, and there were cases of firmware with a literal "if checkpasswd () then"... overwrite that check to true and you're in. Soif it concerned a disk with that vulnerability, maybe they did it like that. (See https://www.ieee-security.org/TC/SP2019/papers/310.pdf https://www.ieee-security.org/TC/SP2019/papers/310.pdf)