AI firm claims it stopped Chinese state-sponsored cyber-attack campaign

Anthropic says its coding tool, Claude Code, was manipulated to attack 30 entities. Anthropic says its coding tool, Claude Code, was manipulated to attack 30 entities. Anthropic says financial firms and government agencies were attacked'largely without human intervention' Fri 14 Nov 2025 11.27 ESTLast modified on Fri 14 Nov 2025 12.18 EST A leading artificial intelligence company claims to have stopped a China-backed "cyber espionage" campaign that was able to infiltrate financial firms and government agencies with almost no human oversight. The US-based Anthropic said its coding tool, Claude Code, was "manipulated" by a Chinese state-sponsored group to attack 30 entities around the world in September, achieving a "handful of successful intrusions". This was a "significant escalation" from previous AI-enabled attacks it monitored, it wrote in a blogpost on Thursday, because Claude acted largely independently: 80 to 90% of the operations involved in the attack were performed without a human in the loop.