Given a BIOS password is set, boot order taken care of, administrative accounts not given out, et cetera, although Grub is not secured,
then how hard is it for someone to hack into a system, given they do not open the laptop or desktop case and start fiddling around with jumper or batteries?
Do someone entering recovery mode need to know advanced commands at the root-shell prompt, or can they simply select the "clean," "repair broken packages," or other menu choices and screw the system up without much relevant knowledge?
I am worried about the possibility for anyone to break something in a system when Grub is not secured (as it seems hard to do so http://ubuntuforums.org/showthread.php?p=12319186).
Can someone who knows nothing can fiddle around aimlessly and break something, or does that require knowledge about relevant root commands?
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