Beginning September 25, 2026, a Chinese-speaking hacker deployed AI agents using the open-source tool Cairn to attempt breaches on over 1,200 commercial websites across the United States, Canada, Australia, and Japan.

From the articlePowerful new AI models are behind a growing wave of cyberattacks, experts say | FortuneAlso in Hackers Use Autonomous AI Agents to Breach Company Websites, Target Over 1,200 Sites, The Fear of a One-Man-Band Weaponizing AI Agents Is Becoming Reality