OpenAI Stops Reasoning Theft — Azure Still Leaked Astra

OpenAI says it disrupted a Moonshot-linked adversarial distillation campaign that tried to extract protected model reasoning at scale (activity from early July through about July 28, with ~16,000 extraction-pattern requests). Researchers later reported the same technique was blocked on OpenAI’s and Anthropic’s own APIs but still worked for weeks on Microsoft Azure — including against newly shipped GPT-6 Astra — until Azure-endpoint safeguards landed around late September.