cracker

Someone who breaks security on computer systems. A cracker may be a true "hacker" or only a "script kiddie".

Hacker jargon to indicate "one who breaks security on a system." Note: The term cracker was coined ca. 1985 by hackers in defense against journalistic misuse of the term hacker. 2. An individual who, with malicious intent, gains or tries to gain illegal access to computers or computer programs. [After Bahorsky] Synonym password cracker.