macOS firmware password hash mode ?

[philsmd]

I'm not very familiar with these macOS passwords, but maybe you could try this:
https://forums.macrumors.com/threads/res...t-24518521
(using firmwarepasswd)

This might also be interesting to read: https://github.com/drduh/macOS-Security-...e#firmware

some info also here: https://tinyapps.org/docs/cracking-filevault.html (If a firmware password is set...)