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Low-rank adaptation (LoRA) is an efficient strategy for adapting latent diffusion models (LDMs) on a private dataset to generate specific images by minimizing the adaptation loss. However, the LoRA-adapted LDMs are vulnerable to membership…

机器学习 · 计算机科学 2024-12-17 Zihao Luo , Xilie Xu , Feng Liu , Yun Sing Koh , Di Wang , Jingfeng Zhang

Large Language Models (LLMs) have achieved remarkable progress in natural language understanding, reasoning, and autonomous decision-making. However, these advancements have also come with significant privacy concerns. While significant…

密码学与安全 · 计算机科学 2026-01-27 Yuntao Du , Zitao Li , Ninghui Li , Bolin Ding

The rapid advancement of large language models (LLMs) has revolutionized natural language processing, enabling applications in diverse domains such as healthcare, finance and education. However, the growing reliance on extensive data for…

密码学与安全 · 计算机科学 2024-12-10 Guoshenghui Zhao , Eric Song

With the wide adoption of personal AI assistants such as OpenClaw, privacy leakage in user interaction contexts with large language model (LLM) agents has become a critical issue. Existing privacy attacks against LLMs primarily target…

密码学与安全 · 计算机科学 2026-04-28 Yu Cui , Ruiqing Yue , Hang Fu , Sicheng Pan , Zhuoyu Sun , Baohan Huang , Haibin Zhang , Cong Zuo , Licheng Wang

Large language models (LLMs) are sophisticated artificial intelligence systems that enable machines to generate human-like text with remarkable precision. While LLMs offer significant technological progress, their development using vast…

密码学与安全 · 计算机科学 2025-06-23 Yashothara Shanmugarasa , Ming Ding , M. A. P Chamikara , Thierry Rakotoarivelo

We introduce the (Wishart) projection mechanism, a randomized map of the form $S \mapsto M f(S)$ with $M \sim W_d(1/r I_d, r)$ and study its differential privacy properties. For vector-valued queries $f$, we prove non-asymptotic DP…

机器学习 · 计算机科学 2026-01-30 Yaxi Hu , Johanna Düngler , Bernhard Schölkopf , Amartya Sanyal

Large Language Models (LLMs) represent a significant advancement in artificial intelligence, finding applications across various domains. However, their reliance on massive internet-sourced datasets for training brings notable privacy…

Large language model (LLM) personalization aims to adapt general-purpose models to individual users. Most existing methods, however, are developed under data-rich and resource-abundant settings, often incurring privacy risks. In contrast,…

计算与语言 · 计算机科学 2026-01-13 Junho Park , Dohoon Kim , Taesup Moon

Large Language Models (LLMs) pose significant privacy risks, potentially leaking training data due to implicit memorization. Existing privacy attacks primarily focus on membership inference attacks (MIAs) or data extraction attacks, but…

计算与语言 · 计算机科学 2025-06-11 Wenlong Meng , Zhenyuan Guo , Lenan Wu , Chen Gong , Wenyan Liu , Weixian Li , Chengkun Wei , Wenzhi Chen

Current techniques for privacy auditing of large language models (LLMs) have limited efficacy -- they rely on basic approaches to generate canaries which leads to weak membership inference attacks that in turn give loose lower bounds on the…

密码学与安全 · 计算机科学 2025-03-11 Ashwinee Panda , Xinyu Tang , Milad Nasr , Christopher A. Choquette-Choo , Prateek Mittal

Large language models (LLMs) have significantly transformed natural language understanding and generation, but they raise privacy concerns due to potential exposure of sensitive information. Studies have highlighted the risk of information…

机器学习 · 计算机科学 2025-11-20 Bishnu Bhusal , Manoj Acharya , Ramneet Kaur , Colin Samplawski , Anirban Roy , Adam D. Cobb , Rohit Chadha , Susmit Jha

Large language models (LLMs) require a significant redesign in solutions to preserve privacy in data-intensive applications due to their text-generation capabilities. Indeed, LLMs tend to memorize and emit private information when…

Large language models (LLMs) have achieved remarkable success and are widely adopted for diverse applications. However, fine-tuning these models often involves private or sensitive information, raising critical privacy concerns. In this…

The widespread usage of online Large Language Models (LLMs) inference services has raised significant privacy concerns about the potential exposure of private information in user inputs to malicious eavesdroppers. Existing privacy…

密码学与安全 · 计算机科学 2025-05-29 Ziqian Zeng , Jianwei Wang , Junyao Yang , Zhengdong Lu , Haoran Li , Huiping Zhuang , Cen Chen

With the widespread application of large language models (LLMs), user privacy protection has become a significant research topic. Existing privacy preference modeling methods often rely on large-scale user data, making effective privacy…

密码学与安全 · 计算机科学 2025-05-13 Haowei Yang , Qingyi Lu , Yang Wang , Sibei Liu , Jiayun Zheng , Ao Xiang

Privacy policies are widely used by digital services and often required for legal purposes. Many machine learning based classifiers have been developed to automate detection of different concepts in a given privacy policy, which can help…

计算与语言 · 计算机科学 2025-03-24 Yuxin Chen , Peng Tang , Weidong Qiu , Shujun Li

The performance of modern machine learning systems depends on access to large, high-quality datasets, often sourced from user-generated content or proprietary, domain-specific corpora. However, these rich datasets inherently contain…

密码学与安全 · 计算机科学 2025-08-28 Zhan Shi , Yefeng Yuan , Yuhong Liu , Liang Cheng , Yi Fang

With the rapid adoption of Federated Learning (FL) as the training and tuning protocol for applications utilizing Large Language Models (LLMs), recent research highlights the need for significant modifications to FL to accommodate the…

密码学与安全 · 计算机科学 2024-03-11 Minh N. Vu , Truc Nguyen , Tre' R. Jeter , My T. Thai

Differential privacy quantifies privacy through the privacy budget $\epsilon$, yet its practical interpretation is complicated by variations across models and datasets. Recent research on differentially private machine learning and…

机器学习 · 计算机科学 2024-10-31 Yuechun Gu , Keke Chen

The widespread availability of large-scale code datasets has fueled the rapid development of large language models (LLMs) for code-related tasks. These datasets may include sensitive personally identifiable information (PII), which can lead…

软件工程 · 计算机科学 2026-05-18 Yifei Ge , Zhenpeng Chen , Weisong Sun , Yuchen Chen , Chunrong Fang , Juan Zhai , Xiaofang Zhang , Xia Feng , Yang Liu , Zhenyu Chen