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Nvidia shares declined on Monday after an internal investigation into whether CEO Jensen Huang had been targeted by a foreign intelligence effort put his future at the AI chipmaker under scrutiny, Korea Times reports. The probe follows Huang's admission of an affair with Alice Huang, a businesswoman suspected of working as a spy for the Chinese government, according to KBS World. Nvidia's board of directors opened an independent investigation amid the allegations, raising security concerns, Business Korea reports. The controversy has also sparked watch in the global automaker industry and raised concerns among Korean industry officials that it could affect Nvidia's partnerships in Korea, with past TV comments by Huang about his wife resurfacing in Korean media.