BIOS password lock, and physical lock on computer and/or an environment where it is hard to open the computer without being detected (work/school) makes other o

BIOS password lock, and physical lock on computer and/or an environment where it is hard to open the computer without being detected (work/school) makes other options hard. This exploit you could even pull off on a school lab computer while the teacher is in the room. If he comes over while you're working, inconspicuously power off the machine.