ANTHROPIC said in a Thursday AI misuse-detection report that an unidentified northern Yemeni group used its Claude model to support development of three weapons projects: a guided rocket, a ballistic missile the group claims can exceed 2,000 km range, and an R2000 missile series. The group used Claude to develop guidance, navigation and control software—partially replacing software engineers—and compartmentalized work across multiple AI sessions while concealing the projects’ military nature to

ANTHROPIC said in a Thursday AI misuse-detection report that an unidentified northern Yemeni group used its Claude model to support development of three weapons projects: a guided rocket, a ballistic missile the group claims can exceed 2,000 km range, and an R2000 missile series. The group used Claude to develop guidance, navigation and control software—partially replacing software engineers—and compartmentalized work across multiple AI sessions while concealing the projects’ military nature to evade detection. The disclosure arrives as Iran-backed Houthi forces continue missile and drone attacks on Red Sea shipping and push into coastal areas near the Bab al-Mandeb, intensifying regional fighting and adding upside pressure to energy markets.