China Is Stealing AI Secrets to Turbocharge Spying, U.S. Says

On a July day in 2018, Xiaolang Zhang headed to the San Jose, Calif., airport to board a flight to Beijing. He had passed the checkpoint at Terminal B when his journey was abruptly cut short by federal agents.

After a tipoff by Apple’s security team, the former Apple employee was arrested and charged with stealing trade secrets related to the company’s autonomous-driving program.