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Research reveals logits can leak sensitive info from LLMs

A new research paper explores the potential for information leakage from large language models, even at the final logit level. Researchers used vision-language models to compare information retained at different representational stages, from the full residual stream to compressed bottlenecks like top-k logits. The study found that easily accessible bottlenecks, such as the model's top logit values, can inadvertently reveal task-irrelevant information from an image-based query, sometimes as much as direct projections of the entire residual stream. AI

IMPACT Highlights potential security risks in LLMs, suggesting that even final output probabilities could leak sensitive data.

RANK_REASON The cluster contains a research paper published on arXiv detailing findings about information leakage in AI models. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Research reveals logits can leak sensitive info from LLMs

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The cluster contains a research paper published on arXiv detailing findings about information leakage in AI models. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Masha Fedzechkina, Eleonora Gualdoni, Rita Ramos, Sinead Williamson ·

    What do your logits know?

    arXiv:2604.09885v2 Announce Type: replace Abstract: Recent work has shown that probing model internals can reveal a wealth of information not apparent from the model generations. This poses a risk of unintentional or malicious information leakage, where model users are able to le…