Author

Maosen Zhang

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Preprint Aug 2026

The Model's Tell: Measuring Context-Leakage Attack Signals with Behavior Gauges

This paper proposes LeakGauge, which probes this response by appending a suffix that gauges leakage behavior and mapping its prefill token probabilities to an attack-risk score, and shows that the risk score is sensitive to an internal leakage-related direction.

Maosen Zhang, Jianshuo Dong, Bo-Han Lu et al. · 1 citation

Preprint Aug 2026

Your Agentic LLMs Secretly Encode Indirect Prompt-Injection Exposure in Hidden States

A probe-gated reasoning-based defense is introduced to bridge a knowledge-action gap in agentic LLMs when they are exposed to IPI attacks, and an analysis framework is introduced that identifies natural-language explanations strongly correlated with probe-captured signals.

Jianshuo Dong, Yiming Liu, Maosen Zhang et al. · 1 citation · ⚡1