black hat


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

First Known Use of black hat

1990, in the meaning defined above

Keep scrolling for more

Learn More About black hat

Time Traveler for black hat

Time Traveler

The first known use of black hat was in 1990

See more words from the same year

Dictionary Entries Near black hat

black harry

black hat

black haw

See More Nearby Entries 

Statistics for black hat

Cite this Entry

“Black hat.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
True or False

Test your knowledge - and maybe learn something along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!