noun
a person who is ethical and follows the rules, especially in the context of hacking or cybersecurity
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The white hat hacker was hired to test the company's cybersecurity measures.
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My friend is a white hat hacker who helps companies find vulnerabilities in their systems.
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I heard that guy is a total white hat when it comes to hacking.
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In the world of cybersecurity, white hats are the good guys who work to protect against black hat hackers.