AdvertisementSKIP ADVERTISEMENTHow China’s Secretive Spy Agency Became a Cyber PowerhouseFears of U.S. surveillance drove Xi Jinping, China’s leader, to elevate the agency and put it at the center of his cyber ambitions.Surveillance cameras at Tiananmen Square in Beijing, last year.Credit...Ng Han Guan/Associated PressSept. 28, 2025Updated 12:32 p.m. ETAmerican officials were alarmed in 2023 when they discovered that Chinese state-controlled hackers had infiltrated critical U.S. infrastructure w...