By Ennis in “The Ultimate Newbie FAQ”
http://www.antionline.com/showthread...hreadid=218093
Black Hats
You may have heard this term tossed around this forum a couple of times, Black Hats are crackers out to gain something from their computer knowledge. Basically they are the crimanals you hear about from the media.
White Hats
You guessed it, the good guys. The find holes in systems and may patch them up or warn the sites administrator. These people are the moral conscience of the hacking world.
Grey Hats
Kinda myth-like, apparently the old crackers using their skills have root on many sites but do not deface the site or cause damage. They may install backdoors and sites. They do not talk to anyone or release their exploits to other hackers.
Input from MsMittens