Hacker (computing)
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This article is about computer hacking. For other uses, see Hacker and Hacking.
This article needs reorganization to meet Wikipedia's quality standards. There is good information here, but it is poorly organized; editors are encouraged to be bold and make changes to the overall structure to improve this article. (April 2008)
This article is part of the series:
Computer Hacking

Hobbyist hacker
Technology hacker
Hacker programmer
Hacking in computer security
Computer security
Computer insecurity
Network security
History
Phreaking
Hacker ethic
Black hat, Grey hat, White hat
Hacker Manifesto
Cybercrime
Computer crime
List of convicted computer criminals
Script kiddie
Hacking tools
Vulnerability
Exploit
Payload
Security software
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In computing, a hacker is a person in one of several distinct (but not completely disjoint) communities and subcultures:[1]

People committed to circumvention of computer security. This primarily concerns unauthorized remote computer break-ins via a communication networks such as the Internet (Black hats), but also includes those who debug or fix security problems (White hats), and the morally ambiguous Grey hats. See "Hacker (computer security)".
A community of enthusiast computer programmers and systems designers, originated in the 1960s around the Massachusetts Institute of Technology (MIT)'s Tech Model Railroad Club (TMRC) and MIT Artificial Intelligence Laboratory.[2] This community is notable for launching the free software movement. The World Wide Web and the Internet itself are also hacker artifacts.[3] The Request for Comments RFC 1392 amplifies this meaning as "[a] person who delights in having an intimate understanding of the internal workings of a system, computers and computer networks in particular." See "Hacker (programmer subculture)".
The hobbyist home computing community, focusing on hardware in the late 1970s (e.g. the Homebrew Computer Club[4]) and on software (computer games,[5] software cracking, the demoscene) in the 1980s/1990s. The community included Steve Jobs, Steve Wozniak and Bill Gates and created the personal computing industry.[6] See "Hacker (hobbyist)".
Today, mainstream usage mostly refers to computer criminals, due to the mass media usage of the word since the 1980s. This includes script kiddies, people breaking into computers using programs written by others, with very little knowledge about the way they work. This usage has become so predominant that a large segment of the general public is unaware that different meanings exist. While the use of the word by hobbyist hackers is acknowledged by all three kinds of hackers, and the computer security hackers accept all uses of the word, free software hackers consider the computer intrusion related usage incorrect, and refer to