black hat

noun
Updated on: 9 Nov 2017

Definition of black hat

: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

Recent Examples of black hat from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'black hat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of black hat

1990


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