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Current methods for content safety in Large Language Models (LLMs), such as Supervised Fine-Tuning (SFT) and Reinforcement Learning from Human Feedback (RLHF), often rely on multi-stage training pipelines and lack fine-grained,…

Computation and Language · Computer Science 2026-01-21 Jianfeng Si , Lin Sun , Zhewen Tan , Xiangzheng Zhang

Current safety alignment methods encode safe behavior implicitly within model parameters, creating a fundamental opacity: we cannot easily inspect why a model refuses a request, nor intervene when its safety judgments fail. We propose Safe…

Machine Learning · Computer Science 2026-03-10 Jingyuan Feng , Andrew Gambardella , Gouki Minegishi , Takeshi Kojima , Yusuke Iwasawa , Yutaka Matsuo

Fine-tuning large language models (LLMs) to adapt to evolving safety policies is costly and impractical. Mechanistic interpretability enables inference-time control through latent activation steering, yet its potential for precise,…

Machine Learning · Computer Science 2025-06-06 Shaona Ghosh , Amrita Bhattacharjee , Yftah Ziser , Christopher Parisien

Large vision-language models (LVLMs) have achieved remarkable progress in vision-language reasoning tasks, yet ensuring their safety remains a critical challenge. Recent input-side defenses detect unsafe images with CLIP and prepend safety…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Xingyu Zhu , Beier Zhu , Junfeng Fang , Shuo Wang , Yin Zhang , Xiang Wang , Xiangnan He

Text-to-Speech (TTS) and Voice Conversion (VC) models have exhibited remarkable performance in generating realistic and natural audio. However, their dark side, audio deepfake poses a significant threat to both society and individuals.…

Cryptography and Security · Computer Science 2024-09-17 Xinfeng Li , Kai Li , Yifan Zheng , Chen Yan , Xiaoyu Ji , Wenyuan Xu

Despite the intrinsic risk-awareness of Large Language Models (LLMs), current defenses often result in shallow safety alignment, rendering models vulnerable to disguised attacks (e.g., prefilling) while degrading utility. To bridge this…

Cryptography and Security · Computer Science 2026-01-26 Xianya Fang , Xianying Luo , Yadong Wang , Xiang Chen , Yu Tian , Zequn Sun , Rui Liu , Jun Fang , Naiqiang Tan , Yuanning Cui , Sheng-Jun Huang

With the increasing deployment of Large Language Models (LLMs) on mobile and edge platforms, securing them against model extraction attacks has become a pressing concern. However, protecting model privacy without sacrificing the performance…

Cryptography and Security · Computer Science 2025-10-24 Tushar Nayan , Ziqi Zhang , Ruimin Sun

Large Language Models are susceptible to jailbreak attacks that bypass built-in safety guardrails (e.g., by tricking the model with adversarial prompts). We propose Concept Alignment and Concept Manipulation CALM, an inference-time method…

Machine Learning · Computer Science 2025-10-20 Ruben Belo , Marta Guimaraes , Claudia Soares

Large language models (LLMs) have brought significant advancements to code generation and code repair, benefiting both novice and experienced developers. However, their training using unsanitized data from open-source repositories, like…

Software Engineering · Computer Science 2024-07-08 Jiexin Wang , Xitong Luo , Liuwen Cao , Hongkui He , Hailin Huang , Jiayuan Xie , Adam Jatowt , Yi Cai

The current safeguard mechanisms for large language models (LLMs) are indeed susceptible to jailbreak attacks, making them inherently fragile. Even the process of fine-tuning on apparently benign data for downstream tasks can jeopardize…

Computation and Language · Computer Science 2024-05-16 Xin Yi , Shunfan Zheng , Linlin Wang , Xiaoling Wang , Liang He

Large language models (LLMs) exhibit exceptional capabilities across various tasks but also pose risks by generating harmful content. Existing safety mechanisms, while improving model safety, often lead to overly cautious behavior and fail…

Machine Learning · Computer Science 2025-09-16 Peixuan Han , Cheng Qian , Xiusi Chen , Yuji Zhang , Heng Ji , Denghui Zhang

Recent work on text diffusion models offers a promising alternative to autoregressive generation, but controlling their safety remains underexplored. Existing safety approaches are geared toward autoregressive models and typically rely on…

Machine Learning · Computer Science 2026-05-12 Amman Yusuf , Zhejun Jiang , Mijung Park

Safety-critical scenario generation is crucial for evaluating autonomous driving systems. However, existing approaches often struggle to balance three conflicting objectives: adversarial criticality, physical feasibility, and behavioral…

Robotics · Computer Science 2026-03-05 Jinlong Cui , Fenghua Liang , Guo Yang , Chengcheng Tang , Jianxun Cui

With the rapid advancement of text-to-image (T2I) models, ensuring their safety has become increasingly critical. Existing safety approaches can be categorized into training-time and inference-time methods. While inference-time methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Ruiyang Zhang , Jiahao Luo , Xiaoru Feng , Qiufan Pang , Yaodong Yang , Juntao Dai

Warning: This paper contains examples of harmful language, and reader discretion is recommended. The increasing open release of powerful large language models (LLMs) has facilitated the development of downstream applications by reducing the…

Computation and Language · Computer Science 2023-10-05 Xianjun Yang , Xiao Wang , Qi Zhang , Linda Petzold , William Yang Wang , Xun Zhao , Dahua Lin

As large language models (LLMs) become increasingly integrated into real-world applications such as code generation and chatbot assistance, extensive efforts have been made to align LLM behavior with human values, including safety.…

Cryptography and Security · Computer Science 2024-07-29 Zhangchen Xu , Fengqing Jiang , Luyao Niu , Jinyuan Jia , Bill Yuchen Lin , Radha Poovendran

Large language models (LLMs) have demonstrated remarkable capabilities across various tasks, but ensuring their safety and alignment with human values remains crucial. Current safety alignment methods, such as supervised fine-tuning and…

Computation and Language · Computer Science 2025-03-13 Bilgehan Sel , Dingcheng Li , Phillip Wallis , Vaishakh Keshava , Ming Jin , Siddhartha Reddy Jonnalagadda

High-risk industries like nuclear and aviation use real-time monitoring to detect dangerous system conditions. Similarly, Large Language Models (LLMs) need monitoring safeguards. We propose a real-time framework to predict harmful AI…

Artificial Intelligence · Computer Science 2025-05-21 Maheep Chaudhary , Fazl Barez

Large language models (LLMs) have a transformative impact on a variety of scientific tasks across disciplines including biology, chemistry, medicine, and physics. However, ensuring the safety alignment of these models in scientific research…

Learning-based quadruped controllers achieve impressive agility but typically lack formal safety guarantees under model uncertainty, perception noise, and unstructured contact conditions. We introduce SafeMind, a differentiable stochastic…

Robotics · Computer Science 2026-04-13 Zukun Zhang , Kai Shu , Mingqiao Mo