WeChat, a messaging app integral to Chinese national infrastructure, faced a stark warning when California researchers revealed an AI tool could breach millions of accounts in hours. Named We Worm, the tool could hijack accounts, contact lists, and spread automatically without user interaction. The discovery highlights the accelerating pace of AI hacking capabilities, which experts say outstrip current defenses.

Tech leaders, including Bill Gates, have warned AI risks should be a global priority. This vulnerability adds pressure to upcoming talks between President Trump and China's leader Xi Jinping, scheduled for September 24, where AI security and trade will be discussed. The incident underscores a growing.