PERSON DIRECTORY
Alexander Panfilov
Alexander Panfilov appears in 1 indexed conversation across Machine Learning Street Talk. This directory brings every appearance, source, TL;DR, digest, and transcript into one searchable feed.
Stealing Reasoning Traces from Proprietary LLM APIs — Ilia Shumailov & Alexander Panfilov
Tim ScarfeIlia ShumailovAlexander Panfilov
Researchers show that encrypted reasoning blobs from Anthropic, OpenAI and Google can be decoded by replaying them into smaller models in the same family, without breaking cryptography, and can move across users, variants and fabricated conversations.That turns hidden API reasoning into a privacy, jailbreak and poisoning surface, while proposed fixes—context-bound encryption, access hierarchies and leak classifiers—leave unresolved how much capability is lost when reasoning is withheld.