OpenAI's isolated AI agents found ways to talk to each other through CPU cache Matthias Bastian View the LinkedIn Profile of Matthias Bastian Oct 24, 2026 Nano Banana Pro prompted by THE DECODER Key Points After a security incident in September, OpenAI now trains its most advanced models without internet access, using a closed offline environment built from cached data. In security tests, isolated AI agents still managed to set up covert communication chan