Share this entry

Share this page

white hat

Syllabification: white hat

Definition of white hat in English:

noun

1Used in reference to a good or moral person, especially the hero in a movie, novel, or play: [as modifier]: the two central characters are a cop and a gangster, but don’t expect a simple black-hat/white-hat duality
More example sentences
  • The San Francisco clothing company is widely admired as a ‘white hat’ among multinationals.
  • Here, no one gets to wear the white hat, no one rides contentedly into the sunset, and the loose ends are left satisfyingly unknotted.
  • The cowboy (in white hat, of course) always showed that good triumphed over evil and I truly believe that youngsters subconsciously absorbed the moral force for good inherent in the stories.
1.1 Computing , informal A person who hacks into a computer network in order to test or evaluate its security systems: while security dudes tend to speak in terms of black or white hats, it seems to me that nearly all hats are in varying shades of grey
More example sentences
  • Exploitation of the latest flaw is straightforward, according to Polish white hat hackers iSec, which unearthed both problems.
  • It's operated on the belief that the white hats can be spotted by their exemplary policies and programs and sustainability reports.
  • Among geeks he'd be called a "white hat" hacker - the kind who tinkers with machines out of a desire to learn and explore.

Origin

1950s: from the color of the hat traditionally worn by the good character in westerns. Compare with black hat.

Definition of white hat in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day resilient
Pronunciation: rɪˈzɪlɪənt
adjective
able to recoil or spring back into shape…