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The demand of customized large language models (LLMs) has led to commercial LLMs offering black-box fine-tuning APIs, yet this convenience introduces a critical security loophole: attackers could jailbreak the LLMs by fine-tuning them with…

密码学与安全 · 计算机科学 2026-01-21 Zhixin Xie , Xurui Song , Jun Luo

Multimodal large language models (MLLMs) excel in vision-language tasks but also pose significant risks of generating harmful content, particularly through jailbreak attacks. Jailbreak attacks refer to intentional manipulations that bypass…

密码学与安全 · 计算机科学 2025-07-18 Yi Nian , Shenzhe Zhu , Yuehan Qin , Li Li , Ziyi Wang , Chaowei Xiao , Yue Zhao

While large language models (LLMs) have achieved remarkable success in providing trustworthy responses for knowledge-intensive tasks, they still face critical limitations such as hallucinations and outdated knowledge. To address these…

计算与语言 · 计算机科学 2025-08-06 Zizhong Li , Haopeng Zhang , Jiawei Zhang

Large language model (LLM) safety is a critical issue, with numerous studies employing red team testing to enhance model security. Among these, jailbreak methods explore potential vulnerabilities by crafting malicious prompts that induce…

计算与语言 · 计算机科学 2025-03-07 Honglin Mu , Han He , Yuxin Zhou , Yunlong Feng , Yang Xu , Libo Qin , Xiaoming Shi , Zeming Liu , Xudong Han , Qi Shi , Qingfu Zhu , Wanxiang Che

Ensuring the safety and harmlessness of Large Language Models (LLMs) has become equally critical as their performance in applications. However, existing safety alignment methods typically suffer from safety-performance trade-offs and the…

计算与语言 · 计算机科学 2025-06-30 Yichi Zhang , Siyuan Zhang , Yao Huang , Zeyu Xia , Zhengwei Fang , Xiao Yang , Ranjie Duan , Dong Yan , Yinpeng Dong , Jun Zhu

Understanding the vulnerabilities of Large Vision Language Models (LVLMs) to jailbreak attacks is essential for their responsible real-world deployment. Most previous work requires access to model gradients, or is based on human knowledge…

密码学与安全 · 计算机科学 2025-09-03 Ruoxi Cheng , Yizhong Ding , Shuirong Cao , Ranjie Duan , Xiaoshuang Jia , Shaowei Yuan , Simeng Qin , Zhiqiang Wang , Xiaojun Jia

The rapid development of Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs) has exposed vulnerabilities to various adversarial attacks. This paper provides a comprehensive overview of jailbreaking research targeting…

计算与语言 · 计算机科学 2024-06-24 Siyuan Wang , Zhuohan Long , Zhihao Fan , Zhongyu Wei

Large Language Models (LLMs) have seen widespread adoption across multiple domains, creating an urgent need for robust safety alignment mechanisms. However, robustness remains challenging due to jailbreak attacks that bypass alignment via…

机器学习 · 计算机科学 2026-05-04 Hicham Eddoubi , Umar Faruk Abdullahi , Fadi Hassan

Reinforcement learning (RL) is central to improving reasoning in large language models (LLMs) but typically requires ground-truth rewards. Test-Time Reinforcement Learning (TTRL) removes this need by using majority-vote rewards, but relies…

机器学习 · 计算机科学 2025-10-06 Aleksei Arzhantsev , Otmane Sakhi , Flavian Vasile

Large Language Models (LLMs) have been widely deployed, especially through free Web-based applications that expose them to diverse user-generated inputs, including those from long-tail distributions such as low-resource languages and…

密码学与安全 · 计算机科学 2026-03-23 Wenjing Hong , Zhonghua Rong , Li Wang , Feng Chang , Jian Zhu , Ke Tang , Zexuan Zhu , Yew-Soon Ong

Security concerns for large language models (LLMs) have recently escalated, focusing on thwarting jailbreaking attempts in discrete prompts. However, the exploration of jailbreak vulnerabilities arising from continuous embeddings has been…

密码学与安全 · 计算机科学 2024-07-22 Zihao Xu , Yi Liu , Gelei Deng , Kailong Wang , Yuekang Li , Ling Shi , Stjepan Picek

Integrating large language models (LLMs) into robotic systems has revolutionised embodied artificial intelligence, enabling advanced decision-making and adaptability. However, ensuring reliability, encompassing both security against…

机器人学 · 计算机科学 2025-09-03 Wenxiao Zhang , Xiangrui Kong , Conan Dewitt , Thomas Bräunl , Jin B. Hong

The rapid expansion of research on Large Language Model (LLM) safety and robustness has produced a fragmented and oftentimes buggy ecosystem of implementations, datasets, and evaluation methods. This fragmentation makes reproducibility and…

人工智能 · 计算机科学 2025-11-07 Tim Beyer , Jonas Dornbusch , Jakob Steimle , Moritz Ladenburger , Leo Schwinn , Stephan Günnemann

Recent research shows that Large Language Models (LLMs) are vulnerable to harmful fine-tuning attacks -- models lose their safety alignment ability after fine-tuning on a few harmful samples. For risk mitigation, a guardrail is typically…

密码学与安全 · 计算机科学 2025-01-30 Tiansheng Huang , Sihao Hu , Fatih Ilhan , Selim Furkan Tekin , Ling Liu

Jailbreaks are adversarial attacks designed to bypass the built-in safety mechanisms of large language models. Automated jailbreaks typically optimize an adversarial suffix or adapt long prompt templates by forcing the model to generate the…

计算与语言 · 计算机科学 2025-10-31 Raffaele Mura , Giorgio Piras , Kamilė Lukošiūtė , Maura Pintor , Amin Karbasi , Battista Biggio

Large Language Models (LLMs) have revolutionized various fields with their exceptional capabilities in understanding, processing, and generating human-like text. This paper investigates the potential of LLMs in advancing Network Intrusion…

密码学与安全 · 计算机科学 2025-07-08 Shuo Yang , Xinran Zheng , Xinchen Zhang , Jinfeng Xu , Jinze Li , Donglin Xie , Weicai Long , Edith C. H. Ngai

Iterative jailbreak methods that repeatedly rewrite and input prompts into large language models (LLMs) to induce harmful outputs -- using the model's previous responses to guide each new iteration -- have been found to be a highly…

计算与语言 · 计算机科学 2025-10-21 Masahiro Kaneko , Zeerak Talat , Timothy Baldwin

Large Language Models (LLMs) suffer from a range of vulnerabilities that allow malicious users to solicit undesirable responses through manipulation of the input text. These so-called jailbreak prompts are designed to trick the LLM into…

计算与语言 · 计算机科学 2025-10-13 John Hawkins , Aditya Pramar , Rodney Beard , Rohitash Chandra

In this study, we disclose a worrying new vulnerability in Large Language Models (LLMs), which we term \textbf{involuntary jailbreak}. Unlike existing jailbreak attacks, this weakness is distinct in that it does not involve a specific…

密码学与安全 · 计算机科学 2025-12-30 Yangyang Guo , Yangyan Li , Mohan Kankanhalli

Jailbreaking attacks can effectively manipulate open-source large language models (LLMs) to produce harmful responses. However, these attacks exhibit limited transferability, failing to disrupt proprietary LLMs consistently. To reliably…

机器学习 · 计算机科学 2025-05-20 Runqi Lin , Bo Han , Fengwang Li , Tongling Liu