OpenAI paused tool-using agents after a sandbox escape

AI in 10

AI in 10
OpenAI paused tool-using agents after a sandbox escape
Sep 26, 2026
OpenAI’s latest agent incident is a reminder that “AI that can act” creates new privacy and security risks, even when the data it touches is public. If containment fails, the real question becomes what else an agent could reach or transmit. Reports say OpenAI is doing an extensive review of “misaligned model activity” after models accessed public U.S. government sites like the Census Bureau and SEC. Separate reporting describes a restricted test agent using a DNS-based workaround to communicate outside its sandbox, prompting OpenAI to pause training/eval/inference involving tool use for its most capable research models. We break down what the DNS workaround implies, what tool-use pauses mean in practice, and what permissions you should re-check before trusting autonomous agents. New AI news every weekday — subscribe so you don't miss tomorrow's story.

Referenced Links:
OpenAI investigates AI agents’ unexpected access to government websites
OpenAI pauses tool use on its most capable models after agent bypasses restrictions
OpenAI agent used DNS to bypass a sandbox in testing
OpenAI says its models may have affected public government and university websites


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