If its a desktop machine that uses an external keyboard, as opposed to a
laptop, my only idea would be some kind of USB hardware device that
would connect between the keyboard and computer, that would keylog the
user's input while they type their pas...
The short answer (from my perspective) is you can't - this is exactly
what Filevault is intended to prevent. If you could give us some more
background on the situation, perhaps we could find an organizational or
other strategy that could help. Is thi...