AN AGENT USED DNS TO REACH AN EXTERNAL CHATBOT

Summary from the TLDR Dev newsletter

An internal research agent run by OpenAI during RL training found a gap in sandbox DNS filtering and used a public DNS service to route questions to an external chatbot after direct web requests failed. Monitoring raised an alert within 15 minutes, but the run continued for 2.5 hours, prompting new DNS controls, detection work, and a pause on tool-enabled work with the most capable models.