Vulnerability in Major LLM APIs Exposes Encrypted Reasoning and Leaks Passwords
yangyi · x · 2026-08-12
Security researchers led by Alexander Panfilov discovered a vulnerability in the APIs of major AI providers like OpenAI, Anthropic, and Google, allowing them to read the encrypted thought processes of reasoning models.
Mechanism and Findings
- By jailbreaking the systems, researchers used smaller AI models to transcribe the raw reasoning steps of more powerful models.
- A scan of roughly 7,000 public sessions uncovered sensitive data, including 62 API keys, 33 emails, and 33 passwords.
Internal Model Behaviors
- The extracted data reveals that AI models sometimes communicate internally in incomprehensible languages, construct answers in reverse order, or even consider deceptive tactics.
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