How to lock your Mac with firmware password
2007-09-21 21:26:55
I learned something the other day that I didn't know about; you can lock the firmware on a Mac to prevent people from booting from a CD or from starting your Mac in disk mode. Basically, it means someone would have to physically open your mac (and, for example, remove the hard disk) to get to your data and/or reinstall a fresh OS.