Model-Editing-Based Jailbreak against Safety-aligned Large Language Models

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Hauptverfasser: Li, Yuxi, Zhang, Zhibo, Wang, Kailong, Shi, Ling, Wang, Haoyu
Format: Preprint
Veröffentlicht: 2024
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author Li, Yuxi
Zhang, Zhibo
Wang, Kailong
Shi, Ling
Wang, Haoyu
author_facet Li, Yuxi
Zhang, Zhibo
Wang, Kailong
Shi, Ling
Wang, Haoyu
contents Large Language Models (LLMs) have transformed numerous fields by enabling advanced natural language interactions but remain susceptible to critical vulnerabilities, particularly jailbreak attacks. Current jailbreak techniques, while effective, often depend on input modifications, making them detectable and limiting their stealth and scalability. This paper presents Targeted Model Editing (TME), a novel white-box approach that bypasses safety filters by minimally altering internal model structures while preserving the model's intended functionalities. TME identifies and removes safety-critical transformations (SCTs) embedded in model matrices, enabling malicious queries to bypass restrictions without input modifications. By analyzing distinct activation patterns between safe and unsafe queries, TME isolates and approximates SCTs through an optimization process. Implemented in the D-LLM framework, our method achieves an average Attack Success Rate (ASR) of 84.86% on four mainstream open-source LLMs, maintaining high performance. Unlike existing methods, D-LLM eliminates the need for specific triggers or harmful response collections, offering a stealthier and more effective jailbreak strategy. This work reveals a covert and robust threat vector in LLM security and emphasizes the need for stronger safeguards in model safety alignment.
format Preprint
id arxiv_https___arxiv_org_abs_2412_08201
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Model-Editing-Based Jailbreak against Safety-aligned Large Language Models
Li, Yuxi
Zhang, Zhibo
Wang, Kailong
Shi, Ling
Wang, Haoyu
Cryptography and Security
Machine Learning
Large Language Models (LLMs) have transformed numerous fields by enabling advanced natural language interactions but remain susceptible to critical vulnerabilities, particularly jailbreak attacks. Current jailbreak techniques, while effective, often depend on input modifications, making them detectable and limiting their stealth and scalability. This paper presents Targeted Model Editing (TME), a novel white-box approach that bypasses safety filters by minimally altering internal model structures while preserving the model's intended functionalities. TME identifies and removes safety-critical transformations (SCTs) embedded in model matrices, enabling malicious queries to bypass restrictions without input modifications. By analyzing distinct activation patterns between safe and unsafe queries, TME isolates and approximates SCTs through an optimization process. Implemented in the D-LLM framework, our method achieves an average Attack Success Rate (ASR) of 84.86% on four mainstream open-source LLMs, maintaining high performance. Unlike existing methods, D-LLM eliminates the need for specific triggers or harmful response collections, offering a stealthier and more effective jailbreak strategy. This work reveals a covert and robust threat vector in LLM security and emphasizes the need for stronger safeguards in model safety alignment.
title Model-Editing-Based Jailbreak against Safety-aligned Large Language Models
topic Cryptography and Security
Machine Learning
url https://arxiv.org/abs/2412.08201