noun
white hat hacker; ethical hacker
A computer security expert who uses hacking skills for defensive or ethical purposes, such as finding vulnerabilities to fix them. Wasei-eigo from English 'white hacker'.
wasei-eigo (Japanese-coined English), from white hacker
企業はシステムの弱点を見つけるためにホワイトハッカーを雇った。
The company hired a white hat hacker to find weaknesses in its system.
ホワイトハッカーは不正アクセスを防ぐ技術を提供する。
White hat hackers provide techniques to prevent unauthorized access.