What is criminal hackers?

In the computer security context, a hacker is someone who seeks and exploits weaknesses in a computer system or computer networks.

The term hacker is reclaimed by computer programmer who argue that someone who breaks into computers, whether computer criminal (black hats) or computer security expert (white hats), is more appropriately called a cracker instead. Some white hat hackers claim that they also deserve the title hacker, and that only black hats should be called crackers..