How Two‑Step Distillation Exposed Claude and GPT’s Chain‑of‑Thoughts – 116‑Page Paper Reveals a Fatal API Leak
Researchers uncovered a critical API vulnerability that lets cheap models decode the hidden chain‑of‑thought reasoning of flagship LLMs like Claude, GPT and Gemini, demonstrating cross‑session, cross‑user, and cross‑model leakage through inexpensive API calls and exposing massive sensitive data leaks.
