News · curated 18 Jul 2026
Jailbreaks to OpenAI's GPT-5.6 unlock dangerous cyber capabilities, U.K. agency finds
First reported fortune.com
Coverage timeline
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Why it matters
GPT-5.6 Sol's reported universal jailbreaks unlocking agentic cyber capabilities signal that frontier-model guardrails can be bypassed to automate offensive security tasks, a direct concern for defenders tracking AI-enabled attack tooling.
Fortune reports that the U.K. AI Security Institute (AISI) tested OpenAI's GPT-5.6 Sol before release and identified universal jailbreaks in the cyber domain, including ones enabling long-form agentic task completion in areas like vulnerability research. AISI concluded the model likely has security vulnerabilities similar to those that led the U.S. government to impose export controls on Anthropic's Fable 5.