Monday, September 14. Anthropic says it cut off access to its Claude assistant in several cases it considered sensitive. The U.S. company says it identified research that could contribute to the development of biological weapons,

Anthropic said it blocked scientists who used its Claude AI models "in ways that could support biological weapons development."

Anthropic's threat report reveals Claude blocked real bioweapons research attempts in 2026, with state-linked misuse tied to Russia, China, Iran, and Yemen.

AI was used to develop missile guidance software in Yemen and to power cyber operations, a report alleges.

Anthropic said it was "most concerned" about an event in which Claude uploaded "malicious" code. To help explain the incident, here's a cute robot.

Anthropic says it disrupted the operation, which compiled ship transponder data, military photos, and satellite imagery to track American vessels

The AI company has modeled 3 futures for the US economy in 2030 and its most extreme case has economic growth exploding and nearly 18% of knowledge workers unemployed.

Claude was developed by Anthropic, a San Francisco-based company founded in 2021 by former OpenAI employees focusing on AI safety and research. Dario Amodei, the co-founder and CEO of Anthropic, had served as vice president of research at OpenAI. His sister Daniela Amodei serves as Anthropic’s president.

The report details a number of cases involving the misuse of Claude in criminal and state hacking operations, including by Russia-linked groups. Overall, Anthropic said using AI has become so common for hackers that even the most low-level groups now automate broad swathes of their work.

The four incidents involved an early version of Claude Opus 4.6, Claude Opus 4.7, Claude Mythos 5, and an internal research model participating in capture-the-flag cybersecurity exercises.