Jargon word for people who enjoy attacking complicated program systems or regard doing so as a creative or intellectual challenge.
In contrast to normal users who prefer to only learn the bare minimum functions provided by a program, a hacker tries to exhaust or even expand the capabilities of a program. This may include evading security functions to obtain unauthorized access to remote computer systems in order to obtain sensitive data. Unlike hackers, "crackers" often damage and manipulate and/or publish confidential data.