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white hat

[ hwahyt-hat, wahyt ]
/ ˈʰwaɪt ˈhæt, ˈwaɪt /
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noun Informal.

a virtuous hero, especially in a cowboy movie; good guy.
Also called white hat hack·er .Computers. a hacker who violates the security of a system with the knowledge and consent of the owner or developer in order to test the code, without malicious intent.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?
Compare black hat.

Origin of white hat

First recorded in 1960–65 for def. 1, and in 1990–95 for def. 2; from the white hat often worn by the virtuous hero in a cowboy movie

OTHER WORDS FROM white hat

white-hat, white-hat·ted, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for white hat

British Dictionary definitions for white hat

white hat

noun

informal
  1. a computer hacker who is hired by an organization to undertake nonmalicious hacking work in order to discover computer-security flaws
  2. (as modifier)a white-hat hacker Compare black hat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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