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Nvidia CEO Jensen Huang is stepping down, leaving the AI industry without its biggest champion and clouding the future of the chipmaker he built into an AI powerhouse, the Korea Times reports. The move follows a scandal involving his alleged affair with Alice Huang, a suspected Chinese spy, and another affair with a female executive, which has triggered FBI investigations and U.S. national security probes. Megaspeed, the data center company central to the scandal, has pledged to cooperate with U.S. investigations. Korean investors are rattled, as Nvidia is the second-most-held U.S. stock among Korean investors, and the scandal has unnerved them amid falling shares. Korean tech firms like Samsung and SK hynix are tightening security training against industrial espionage, and the uncertainty threatens Korea's semiconductor industry and AI road maps, with U.S. restrictions likely to be tightened. Seoul shares rose late Thursday morning on strong tech gains despite the controversies, with the KOSPI up 61.41 points.