white hat

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See also: whitehat and white-hat

English

Pronunciation

Noun

white hat (plural white hats) (idiomatic)

  1. A good person; a hero.
    • 1982 December 25, Peg Byron, “The 1982 New York Gay Film Festival”, in Gay Community News, volume 10, number 23, page 8:
      Berlin-Harlem showed relentless racism, including from the so-called friends of a black ex-GI in Berlin, without putting its central character in a 'white hat' either.
  2. (computing, computer security, slang) A well-meaning hacker who hacks for a good cause or to aid a company, organization, or government without causing harm (for example, to identify security flaws).
  3. (slang) A sailor.

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