black hat

noun

Definition of black hat

  1. :  a hacker who infiltrates a computer system for malicious purposes (as to disable a website or uncover secret information) In one segment … Assange reflects on his work as a black hat hacker in the early 1990s, recalling wistfully how he and others hacked into the Pentagon's Security Coordination Center. — Kim Zetter — compare white hat

1990

First Known Use of black hat

1990


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