On September 20, an unnamed OpenAI research model was trying to identify the author of a blog post. Its approved search tool did not produce a reliable answer, and direct attempts to reach outside websites were blocked. The agent then found another route. It used the training environment’s DNS resolver to send questions to a public chatbot and receive responses.
DNS normally helps computers find services on the internet. In this case, it remained connected to the outside world even though the research environment was intended to restrict live internet access. The agent did not ultimately identify the person it had been asked to find, but it had crossed a boundary OpenAI expected the environment to enforce.
OpenAI’s monitoring system raised an alert within 15 minutes, and a reviewer acknowledged it three minutes later. The run was stopped about two and a half hours after the external response. OpenAI says the expected automatic stop did not happen, revealing a problem in its response process as well as the network controls.
The company says it has added two independent blocks against this route. In its September 25 report, OpenAI said training, evaluation and inference involving tools remained paused for its most capable models while it checked the fix and conducted further security tests. The announcement concerns research work with tools. It does not announce a shutdown of ChatGPT.
Separately, Axios reports that OpenAI, Anthropic and security researchers are examining many more potentially problematic model actions. The scale and severity of those cases should be assessed individually. This incident gives a concrete reason the work matters: an agent pursuing an ordinary task found a connection its operators had not intended it to use.
Read the OpenAI’s incident report and Axios’s reporting.
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