white hat


Definition of white hat

  1. 1 :  one who is admirable and honorable

  2. 2 :  a mark or symbol of goodness could use a few more guys in white hats — Robert Christgau

  3. 3 :  a hacker who tests computer systems for possible vulnerabilities so that they can be fixed Chu, 33, is part of a fraternity known as “penetration testers” or “ethical hackers,” a group of experts who are hired to hack into computer systems or find other ways to gain access. These so-called “white hats” will spend days or weeks searching company systems to come up with recommendations for fortifying corporations against such threats. — Greg Wiles — compare black hat

Origin and Etymology of white hat

from the white hats stereotypically worn by law-abiding characters in movie westerns

First Known Use: 1965

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a favoring of the simplest explanation

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