Nvidia and its chief executive, Jensen Huang, have been accused of misleading shareholders in a lawsuit over the Chinese spying scandal engulfing the $4.3tn company. The legal action came as Donald Trump said the FBI was investigating Huang’s affair with an alleged Chinese spy. According to a complaint filed in federal court in California, Nvidia and Huang misled shareholders in connection with the executive’s alleged affair with Alice Huang, a former executive of Singapore-based ⁠Megaspeed, who is not related to him. The lawsuit claims both parties did not disclose that the matter raised national security concerns that threatened the chipmaker’s reputation and business prospects. The New York Times reported on the alleged relationship last month, and said US authorities had concluded Alice Huang was a Chinese intelligence asset. Nvidia described its executive’s interaction with Alice Huang as “not unusual or unexpected” in a comment submitted to the New York Times last month, adding t