English

Defending Large Language Models Against Jailbreak Exploits with Responsible AI Considerations

Cryptography and Security 2025-11-25 v1 Artificial Intelligence

Abstract

Large Language Models (LLMs) remain susceptible to jailbreak exploits that bypass safety filters and induce harmful or unethical behavior. This work presents a systematic taxonomy of existing jailbreak defenses across prompt-level, model-level, and training-time interventions, followed by three proposed defense strategies. First, a Prompt-Level Defense Framework detects and neutralizes adversarial inputs through sanitization, paraphrasing, and adaptive system guarding. Second, a Logit-Based Steering Defense reinforces refusal behavior through inference-time vector steering in safety-sensitive layers. Third, a Domain-Specific Agent Defense employs the MetaGPT framework to enforce structured, role-based collaboration and domain adherence. Experiments on benchmark datasets show substantial reductions in attack success rate, achieving full mitigation under the agent-based defense. Overall, this study highlights how jailbreaks pose a significant security threat to LLMs and identifies key intervention points for prevention, while noting that defense strategies often involve trade-offs between safety, performance, and scalability. Code is available at: https://github.com/Kuro0911/CS5446-Project

Keywords

Cite

@article{arxiv.2511.18933,
  title  = {Defending Large Language Models Against Jailbreak Exploits with Responsible AI Considerations},
  author = {Ryan Wong and Hosea David Yu Fei Ng and Dhananjai Sharma and Glenn Jun Jie Ng and Kavishvaran Srinivasan},
  journal= {arXiv preprint arXiv:2511.18933},
  year   = {2025}
}

Comments

20 pages including appendix; technical report; NeurIPS 2024 style

R2 v1 2026-07-01T07:51:49.416Z