a hacker (= a person who gets into computer systems without permission) who has morally good reasons

中文解释

白帽黑客 Levy is a so-called \"white hat\" computer hacker who hunts for computer security flaws to help repair them. 利维是一个所谓的“白帽”电脑黑客，他搜寻电脑安全漏洞以帮助修复漏洞。