Author

Yuxi Li

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Preprint Jul 2026

Defense Against LLM Backdoors using Critical Neuron Isolation Pruning

DeCNIP (Defense with Critical Neuron Isolation Pruning), which leverages representational analysis to identify and neutralize backdoors in a unified pipeline, is introduced, which achieves over 95% relative reduction in Attack Success Rate (ASR), outperforming seven state-of-the-art defenses with only 0.1% neuron intervention.

Yuxi Li, Zhibo Zhang, Kailong Wang et al. · 0 citations