Hacker has several common meanings, the unifying characteristic of
which is only that it refers to a person who is an avid computer
enthusiast. It is most commonly used as a pejorative by the mass media
to refer to a person who engages in illegal computer trespass remotely via some sort of communications network (e.g., the internet, a local area network or a dial-up network) but it can also refer to people engaged in ethical computer hacking (e.g., debugging or fixing security problems), to the members of the free and open source software community, or to home computer hobbyists.
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