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Jailbreaking with Universal Multi-Prompts (2502.01154v1)

Published 3 Feb 2025 in cs.CL, cs.AI, cs.CR, and cs.LG

Abstract: LLMs have seen rapid development in recent years, revolutionizing various applications and significantly enhancing convenience and productivity. However, alongside their impressive capabilities, ethical concerns and new types of attacks, such as jailbreaking, have emerged. While most prompting techniques focus on optimizing adversarial inputs for individual cases, resulting in higher computational costs when dealing with large datasets. Less research has addressed the more general setting of training a universal attacker that can transfer to unseen tasks. In this paper, we introduce JUMP, a prompt-based method designed to jailbreak LLMs using universal multi-prompts. We also adapt our approach for defense, which we term DUMP. Experimental results demonstrate that our method for optimizing universal multi-prompts outperforms existing techniques.

Summary

  • The paper introduces JUMP, a method that generates universal adversarial prompts via beam search optimization for effective jailbreaking of LLMs.
  • It demonstrates superior attack success rates over baselines by balancing text perplexity and leveraging handcrafted prompt initialization.
  • The study adapts JUMP into DUMP, a defensive strategy that mitigates adversarial influences through adversarial training and optimized prompt design.

Analysis of "Jailbreaking with Universal Multi-Prompts"

The paper "Jailbreaking with Universal Multi-Prompts" introduces a novel approach to compromising LLMs through the method known as jailbreaking. This paper highlights the dual purpose of its mechanism, JUMP (Jailbreak Using Multi-Prompts), both to create adversarial prompts capable of causing LLMs to output undesirable or unethical content, and to adapt as a defense mechanism called DUMP for detecting and neutralizing such adverse influences.

In recent developments, LLMs have expanded significantly, demonstrating generalization across a broad range of tasks without necessitating specific fine-tuning. Despite their capabilities, these models are susceptible to vulnerabilities, notably adversarial attacks aimed at exploiting the models' latent behaviors not aligned with safety objectives. Most prior methodologies focused on individual adversarial attacks, raising computational inefficiencies across larger datasets. JUMP enters the fray as a promising strategy by generating universal adversarial prompts that apply generally and are effective even on unseen data inputs.

The key technical advancement presented by JUMP is in its formulation of multi-prompt generation via a beam search optimization strategy. The heuristic-driven JUMP operates without requiring modifications to existing models, maximizing attack success rates (ASRs) while balancing with text perplexity, a measure of linguistic naturalness. This capability is crucial in evading detection mechanisms that exploit unnaturally high perplexity as an indicator of adversarial text.

Empirical evaluations conducted against several state-of-the-art open-source models such as the Llama and Mistral families, and proprietary models such as GPT-3.5 and GPT-4 from OpenAI, show that JUMP exhibits superior performance in terms of ASRs compared to existing baselines like AdvPrompter and AutoDAN, especially when initialized with handcrafted prompts for added effectiveness in perplexity control.

An intriguing aspect of the paper is its successful adaptation of JUMP into a defense application as DUMP (Defensing with Universal Multi-Prompts). By incorporating adversarial training principles and optimizing defensive prompts against known attacks, DUMP effectively diminishes the ASR of known attack methods like AutoDAN, validating the robustness and flexibility of the universal multi-prompt strategy in both attacking and defending LLMs.

The paper acknowledges pending improvements, especially in the balance between efficiency and the linguistic naturalness of prompts, and the dependency of JUMP++ efficacy on the initial prompt design appropriateness. While the results are compelling in the current scope of AI safety and adversarial robustness, future research might extend towards automating and optimizing handcrafted prompt synthesis and exploring more nuanced applications in dynamic environments such as real-time conversational agents.

In conclusion, "Jailbreaking with Universal Multi-Prompts" contributes strategically to LLM research by providing a practical, scalable technique for generating and defending against adversarial prompts. This work paves the way for further exploration into integrated security mechanisms within AI systems, empowering them to sustain against evolving adversarial tactics without compromising the models' operational integrity or utility.