Black-hat meaning

A villain or bad guy in a story, especially in a Western (a film or other work of the Western genre).
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(computing, slang) A malicious hacker who commits illegal acts.
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A Haredi Jew; a member of an ultra-Orthodox Jewish community.
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Origin of black-hat

  • From the black stetsons (cowboy hats) traditionally worn by such villains.

    From Wiktionary

  • From the black hats traditionally worn by men in Haredi communities.

    From Wiktionary