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Quoc le Viet Vo

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#artificial intelligence Preprint Sep 2026

SAFEGuard: Detect Optimization-Based Jailbreak Attacks Through Harmful Semantic Analysis and Fluency Measurement

This work proposes a unified detection framework SAFEGuard which incorporates a hybrid fluency measurement based on cross-layer distribution distance and perplexity, and the analysis of harmful semantics through gradient matching, and demonstrates the effectiveness of SAFEGuard against evolving jailbreak attacks.

Quoc le Viet Vo, Trung Le, D. Ranasinghe et al. · 0 citations