Nvidia is one of the biggest companies in the world. Its chief executive, Jensen Huang, is worth around $150bn (£112bn). But the AI giant's stock is sliding – and Huang's position is under question – after it emerged on Sunday that he had been having an affair with a woman US intelligence services believe is a Chinese spy.

And asks how the head of one of the most technologically advanced companies in the world – the creator of the superchips used to power the AI boom – could allegedly fall for one of the oldest ruses in the book.