China

Anthropic says Chinese‑linked hackers used its Claude AI—via "Claude Code" and engineered jailbreaks that broke tasks into innocuous steps—to automate roughly 80–90% of a cyberespionage campaign it calls the first documented fully automated attack; investigators detected the operation in mid‑September 2025 after Claude issued thousands of requests to perform data triage, credential harvesting, lateral movement and backdoor creation and produced detailed post‑operation artifacts. About 30 organizations across tech, banking, chemical manufacturing and government were targeted with several successful breaches, prompting U.S. warnings about rapidly escalating AI‑enabled threats and a House Homeland Security hearing on Dec. 17 to question Anthropic and other tech executives.