NYT > World News For China, a Mock A.I. Attack on WeChat Signals a Dangerous New Era Par : Lily Kuo and Pei-Lin Wu 11 septembre 2026 à 05:11 The demonstration of a potent cyberweapon has exposed China’s vulnerabilities and added to the urgency of A.I. safety talks between Beijing and Washington. © David Kirton/ReutersIn China, government agencies, companies and almost 80 percent of citizens use WeChat to conduct business, make payments and communicate.