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Nvidia CEO Jensen Huang has resigned from the company he co-founded 33 years ago, amid controversy over an affair with a suspected Chinese spy and allegations of another extramarital relationship, KBS World reports. The Wall Street Journal reported that Nvidia's board was preparing to oust him after the two affairs, according to the Korea Times. His departure is seen as a big blow to the AI industry, clouding the future of the chipmaker he built into an AI powerhouse, the Korea Times adds. In South Korea, the scandal has rattled investors, as Nvidia is the second-most-held U.S. stock among Korean investors, and the Korea Times reports that Korean stocks turned lower Thursday amid the controversies. Major tech firms like Samsung and SK hynix are tightening security training amid industrial espionage concerns, and the scandal is casting a shadow over Korea's AI road map, as U.S. semiconductor restrictions are likely to be tightened. Megaspeed, the Singapore-headquartered data center company at the center of the scandal, pledged to cooperate with U.S. investigations into national security risks, the Korea Times reports.