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As Large Language Models (LLMs) become increasingly integrated into many technological ecosystems across various domains and industries, identifying which model is deployed or being interacted with is critical for the security and…

密码学与安全 · 计算机科学 2025-07-09 Saeif Alhazbi , Ahmed Mohamed Hussain , Gabriele Oligeri , Panos Papadimitratos

Large language models (LLMs) are increasingly used in sensitive domains, where their ability to infer personal data from seemingly benign text introduces emerging privacy risks. While recent LLM-based anonymization methods help mitigate…

计算与语言 · 计算机科学 2025-10-27 Kyuyoung Kim , Hyunjun Jeon , Jinwoo Shin

Medical multimodal large language models (MLLMs) are becoming an instrumental part of healthcare systems, assisting medical personnel with decision making and results analysis. Models for radiology report generation are able to interpret…

密码学与安全 · 计算机科学 2025-02-05 Yaling Shen , Zhixiong Zhuang , Kun Yuan , Maria-Irina Nicolae , Nassir Navab , Nicolas Padoy , Mario Fritz

Differential privacy (DP) is the de facto privacy standard against privacy leakage attacks, including many recently discovered ones against large language models (LLMs). However, we discovered that LLMs could reconstruct the altered/removed…

密码学与安全 · 计算机科学 2025-09-19 Shuchao Pang , Zhigang Lu , Haichen Wang , Peng Fu , Yongbin Zhou , Minhui Xue

The intellectual property (IP) of Deep neural networks (DNNs) can be easily ``stolen'' by surrogate model attack. There has been significant progress in solutions to protect the IP of DNN models in classification tasks. However, little…

密码学与安全 · 计算机科学 2021-08-06 Jie Zhang , Dongdong Chen , Jing Liao , Han Fang , Zehua Ma , Weiming Zhang , Gang Hua , Nenghai Yu

Graph Neural Networks (GNNs), specifically designed to process the graph data, have achieved remarkable success in various applications. Link stealing attacks on graph data pose a significant privacy threat, as attackers aim to extract…

密码学与安全 · 计算机科学 2024-12-10 Faqian Guan , Tianqing Zhu , Wenhan Chang , Wei Ren , Wanlei Zhou

Label differential privacy (label-DP) is a popular framework for training private ML models on datasets with public features and sensitive private labels. Despite its rigorous privacy guarantee, it has been observed that in practice…

机器学习 · 计算机科学 2023-06-06 Ruihan Wu , Jin Peng Zhou , Kilian Q. Weinberger , Chuan Guo

Watermarking has emerged as a promising technique to track AI-generated content and differentiate it from authentic human creations. While prior work extensively studies watermarking for autoregressive large language models (LLMs) and image…

密码学与安全 · 计算机科学 2026-02-16 Avi Bagchi , Akhil Bhimaraju , Moulik Choraria , Daniel Alabi , Lav R. Varshney

The radioactive nature of Large Language Model (LLM) watermarking enables the detection of watermarks inherited by student models when trained on the outputs of watermarked teacher models, making it a promising tool for preventing…

计算与语言 · 计算机科学 2025-05-27 Leyi Pan , Aiwei Liu , Shiyu Huang , Yijian Lu , Xuming Hu , Lijie Wen , Irwin King , Philip S. Yu

Recently, the powerful large language models (LLMs) have been instrumental in propelling the progress of recommender systems (RS). However, while these systems have flourished, their susceptibility to security threats has been largely…

计算与语言 · 计算机科学 2024-06-06 Jinghao Zhang , Yuting Liu , Qiang Liu , Shu Wu , Guibing Guo , Liang Wang

The proliferation of large language models (LLMs) in generating content raises concerns about text copyright. Watermarking methods, particularly logit-based approaches, embed imperceptible identifiers into text to address these challenges.…

计算与语言 · 计算机科学 2025-02-06 Yiyang Luo , Ke Lin , Chao Gu , Jiahui Hou , Lijie Wen , Ping Luo

Watermarking acts as a critical safeguard in text generated by Large Language Models (LLMs). By embedding identifiable signals into model outputs, watermarking enables reliable attribution and enhances the security of machine-generated…

计算与语言 · 计算机科学 2026-05-29 Yukang Lin , Jiahao Shao , Shuoran Jiang , Wentao Zhu , Bingjie Lu , Xiangping Wu , Joanna Siebert , Qingcai Chen

Large Language Models (LLMs) excel in natural language understanding by capturing hidden semantics in vector space. This process enriches the value of text embeddings for various downstream tasks, thereby fostering the…

人工智能 · 计算机科学 2024-08-28 Peihua Mai , Ran Yan , Zhe Huang , Youjia Yang , Yan Pang

Model watermarking techniques can embed watermark information into the protected model for ownership declaration by constructing specific input-output pairs. However, existing watermarks are easily removed when facing model stealing…

密码学与安全 · 计算机科学 2025-11-13 Yunfei Yang , Xiaojun Chen , Yuexin Xuan , Zhendong Zhao , Xin Zhao , He Li

Copyright protection for large language models is of critical importance, given their substantial development costs, proprietary value, and potential for misuse. Existing surveys have predominantly focused on techniques for tracing…

As large language models (LLMs) continue to advance rapidly, reliable governance tools have become critical. Publicly verifiable watermarking is particularly essential for fostering a trustworthy AI ecosystem. A central challenge persists:…

计算与语言 · 计算机科学 2026-04-20 Shinwoo Park , Hyejin Park , Hyeseon An , Yo-Sub Han

Differential privacy (DP) is a widely used approach for mitigating privacy risks when training machine learning models on sensitive data. DP mechanisms add noise during training to limit the risk of information leakage. The scale of the…

机器学习 · 计算机科学 2024-11-11 Bogdan Kulynych , Juan Felipe Gomez , Georgios Kaissis , Flavio du Pin Calmon , Carmela Troncoso

Personalized Large Language Models (LLMs) have become increasingly prevalent, showcasing the impressive capabilities of models like GPT-4. This trend has also catalyzed extensive research on deploying LLMs on mobile devices. Feasible…

机器学习 · 计算机科学 2025-01-13 Yunmeng Shu , Shaofeng Li , Tian Dong , Yan Meng , Haojin Zhu

With the widespread adoption of open-source code language models (code LMs), intellectual property (IP) protection has become an increasingly critical concern. While current watermarking techniques have the potential to identify the code LM…

编程语言 · 计算机科学 2025-09-18 Boyu Zhang , Ping He , Tianyu Du , Xuhong Zhang , Lei Yun , Kingsum Chow , Jianwei Yin

Large language models (LLMs) have demonstrated remarkable capabilities across diverse applications, however, they remain critically vulnerable to jailbreak attacks that elicit harmful responses violating human values and safety guidelines.…

密码学与安全 · 计算机科学 2026-01-12 Zhaoqi Wang , Zijian Zhang , Daqing He , Pengtao Kou , Xin Li , Jiamou Liu , Jincheng An , Yong Liu