Anthropic Exposes 2,000-km Missile and H5N1 Misuse of Claude by State-Linked Networks
Updated
Updated · Harici · Sep 15
Anthropic Exposes 2,000-km Missile and H5N1 Misuse of Claude by State-Linked Networks
3 articles · Updated · Harici · Sep 15
Summary
Anthropic said state-linked and criminal users misused Claude from December 2025 to August 2026 for weapons, bio research, surveillance and influence operations, then had their accounts terminated and indicators shared with partners.
A Houthi-linked cell in northern Yemen used Claude across three missile programs—including a ballistic missile with a range above 2,000 km—and returned after a failed live-fire test to upload telemetry and troubleshoot guidance software.
Iran-linked actors used the model to track US warships and personnel, draft targeting manuals and build surveillance tools, while a Russia-based team developed autonomous kamikaze drone-swarm software using battlefield footage from Ukraine.
Anthropic also logged five biological-risk cases, including work to boost Chikungunya transmission and adapt H5 avian flu—described as carrying a 50% human mortality rate—for airborne spread in mammals.
The report adds to Anthropic's recent warnings that frontier AI can accelerate bio-weapon and cyber capabilities, broadening the threat picture from pathogen misuse to military and political operations.