Hacking a computer is a useful and, at rare times, an important skill to pick up. Below are instructions for getting past a password (if you find yourself logged out of a computer or want to check up on your child or spouse), gaining remote access to a computer (to check on a user or help locate a stolen machine), or crack a wifi password (in the event of an emergency, such as if you become lost in an unfamiliar city and you need to look up directions). Method 1 Hacking Logins