Anthropic says it blocked misuse of its AI that could have supported biological weapons

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🗞️ Driving the news: Anthropic said Thursday it blocked attempts to use its AI models for cyberattacks, surveillance and research that could have supported biological weapons
• In one case its systems blocked a request to help write a scientific grant application for gain-of-function research on the chikungunya virus, aimed at increasing transmissibility and immune evasion

🔭 The context: The report, Anthropic's third since March 2025, covers misuse found between December 2025 and August 2026 by spyware vendors, politically motivated individuals and state-sponsored groups
• It also documents nine influence operations originating in Russia, Iran, Turkey and across the Gulf, South Asia, Africa and Europe, which built hundreds of fake social media accounts to amplify political messaging

🌍 Why it matters for corporate governance and sustainability: Anthropic states it can no longer assure that its current models are below the threshold at which they could meaningfully assist dangerous biological research, an admission that the company is setting and policing its own safety boundary
• Cornell's John Thickstun argues this places firms in the uncomfortable position of making value judgements at societal scale without democratic or deliberative oversight

⏭️ What's next: The report lands two days after Anthropic researcher Jacob Coxon resigned, warning that the company and OpenAI are racing toward self-improving superintelligence, and ahead of Anthropic's planned IPO this autumn

💬 One quote: AI firms are expected to determine safe versus unsafe behaviour and make "value judgments at societal scale without any kind of democratic or deliberative oversight" — John Thickstun, assistant professor of computer science, Cornell University

📈 One stat: Nine separate influence operations identified across four named countries and four regions

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