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   black hat

   noun

   • 1. a bad person, especially a villain or criminal in a film, novel, or play: "we are the good guys—the black hats lost"
   • ▪ a person who hacks into a computer network with malicious or criminal intent: "black hats have a history of disassembling source code and looking for lapses"

   Word Origin 1950s: from the colour of the hat traditionally worn by the bad characters in westerns. Compare with white hat.

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