A hacker named Xbow has topped a prestigious security industry US leaderboard that tracks who has found and reported the most vulnerabilities in software from large companies. Xbow isn’t a person — it’s an artificial intelligence tool developed by a company of the same name.This is the first time a company’s AI product has topped HackerOne’s US leaderboard by reputation, which measures how many vulnerabilities have been found and the importance of each one, according to HackerOne co-founder Mich...