OpenAI says it blocked an attack that stole model reasoning, but the method still works on Azure

OpenAI says it stopped a campaign to steal its models' reasoning, but the trick still worked on Azure

OpenAI says it stopped an attack that stole its model reasoning. The campaign started at low volume on July 1, jumped to 16,000 requests from over 4,000 users on July 24-25, and involved more than 15,000 linked accounts. All were shut down by July 28. OpenAI says the key people are tied to Moonshot AI.

Why it matters: It lays out the timeline of a reasoning-distillation attack and the platform gap, showing where reasoning protection actually leaks in the cloud.