Hacker

Someone who derives the purpose of hardware and software from its intended use through reverse-engineering or exploiting digital ignorance. There are three types.

White-hats: Hacking for the good. (Goverments, FBI, etc.)

Grey-Hats: Hacking against the law, but for the people. (Think Anonymous.)

Black-Hats: Hacking against the law, for financial or intellectual gain.

Average: Dude, did you hear about the hackers?

Hacker: The Sony security was shit.