Encrypted AI reasoning vulnerability in Anthropic, OpenAI, and Google APIs let researchers decode 315,320 published session ...

Researchers found every major AI provider encrypts reasoning tokens with a single global key—and exploited it to decode a trove of data.

Replayable AI reasoning blocks let researchers recover API keys and passwords from public logs; they say the main extraction attack is now mitigated.

A team of eight researchers reports that encrypted reasoning blocks returned by major AI model APIs can sometimes be recovered.

Security flaw allows AI reasoning logs (GPT-5, Claude) to be read in plain text via smaller models from same provider.

Call it a reasoning renaissance. In the wake of the release of OpenAI’s o1, a so-called reasoning model, there’s been an explosion of reasoning models from rival AI labs. In early November, DeepSeek, ...