What and Who is hacker?

From Wikipedia, the free encyclopedia

Hacker may refer to:

• Hack (disambiguation): a hacker is one who hacks.

Innovation

• Hacker (computing), a contentious term used for several types of person:
  • Hacker (computer security) or cracker, who accesses a computer system by circumventing its security system
  • Hacker (programmer subculture), who shares an anti-authoritarian approach to software development now associated with the free software movement
  • Hacker (hobbyist), who makes innovative customizations or combinations of retail electronic and computer equipment

Analogous meanings in other fields are:

• Media hacker, innovative user of digital media
• Wetware hacker, who experiments with biological materials
• Reality hacking, activism through legally dubious disruption of digital media