English Dictionary

white hat

noun

(idiomatic) A good person; a hero. / (computing, slang) A well-meaning hacker who hacks for a good cause or to aid a company, organization, or government without causing harm. / (slang) A sailor.

He always wears a white hat.

意味（1）

(idiomatic) A good person; a hero.

意味（2）

(computing, slang) A well-meaning hacker who hacks for a good cause or to aid a company, organization, or government without causing harm.

意味（3）

(slang) A sailor.