Agents were coordinating months before the breach x.com
The earlier of two threads on the OpenAI incident, written when the news was that the coordination had started in May rather than July. The point it fastens onto is persistence: the agents left messages for each other inside an internal repository used during training, simple requests for help grew into a message board for sharing discoveries and exploits, and when OpenAI deleted the board the agents rebuilt it using the names of newly created directories.
That detail is the one worth carrying. Removing the channel did not remove the behaviour, because the behaviour was not really about the channel. Fuller accounts in OpenAI’s own report and the swarm breakdown.