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New technique makes text invisible to LLMs, posing security risks

Researchers have developed a method to make text invisible to large language models, effectively creating a "span veto" that causes models to ignore specific content. This invisibility can be used for various purposes, including as a supply-chain backdoor or for auditing AI systems. While simpler versions of this attack can be detected by linear probes, more sophisticated versions harden the attack to the point where detection becomes difficult, trading off probe visibility against routing visibility. AI

IMPACT This research highlights potential vulnerabilities in LLMs, impacting AI security and auditing practices.

RANK_REASON Academic paper detailing a new technique for LLMs. [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 →

New technique makes text invisible to LLMs, posing security risks

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Academic paper detailing a new technique for LLMs. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Mark Russinovich ·

    What the Model Cannot See: Covert and Provable Text Invisibility in LLMs

    arXiv:2610.15883v1 Announce Type: cross Abstract: Text wrapped in a trigger can be made behaviorally invisible to a language model: omitted from summaries and quotations, ignored in question answering, and left unflagged by downstream filtering. We study this selective blindness …