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Related papers: Confidential Prompting: Privacy-preserving LLM Inf…

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Prompt caching in large language models (LLMs) results in data-dependent timing variations: cached prompts are processed faster than non-cached prompts. These timing differences introduce the risk of side-channel timing attacks. For…

Computation and Language · Computer Science 2025-07-15 Chenchen Gu , Xiang Lisa Li , Rohith Kuditipudi , Percy Liang , Tatsunori Hashimoto

Large Language Models (LLMs) are increasingly being integrated into the scientific peer-review process, raising new questions about their reliability and resilience to manipulation. In this work, we investigate the potential for hidden…

Cryptography and Security · Computer Science 2026-03-31 Matteo Gioele Collu , Umberto Salviati , Roberto Confalonieri , Mauro Conti , Giovanni Apruzzese

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…

Cryptography and Security · Computer Science 2025-05-13 Haowei Yang , Qingyi Lu , Yang Wang , Sibei Liu , Jiayun Zheng , Ao Xiang

The increasing reliance on Large Language Models (LLMs) in sensitive domains like finance necessitates robust methods for privacy preservation and regulatory compliance. This paper presents an iterative meta-prompting methodology designed…

Computation and Language · Computer Science 2025-09-25 Sayash Raaj Hiraou

Private data, being larger and quality-higher than public data, can greatly improve large language models (LLM). However, due to privacy concerns, this data is often dispersed in multiple silos, making its secure utilization for LLM…

Cryptography and Security · Computer Science 2024-12-24 JiaYing Zheng , HaiNan Zhang , LingXiang Wang , WangJie Qiu , HongWei Zheng , ZhiMing Zheng

The rise of large language models (LLMs) has introduced new privacy challenges, particularly during inference where sensitive information in prompts may be exposed to proprietary LLM APIs. In this paper, we address the problem of formally…

Cryptography and Security · Computer Science 2025-08-18 Amrita Roy Chowdhury , David Glukhov , Divyam Anshumaan , Prasad Chalasani , Nicolas Papernot , Somesh Jha , Mihir Bellare

We present an approach for generating differentially private synthetic text using large language models (LLMs), via private prediction. In the private prediction framework, we only require the output synthetic data to satisfy differential…

Machine Learning · Computer Science 2024-10-10 Kareem Amin , Alex Bie , Weiwei Kong , Alexey Kurakin , Natalia Ponomareva , Umar Syed , Andreas Terzis , Sergei Vassilvitskii

Alignment is a key step in developing Large Language Models (LLMs) using human feedback to ensure adherence to human values and societal norms. Dependence on human feedback raises privacy concerns about how much a labeler's preferences may…

Machine Learning · Computer Science 2025-12-11 Noel Teku , Fengwei Tian , Payel Bhattacharjee , Souradip Chakraborty , Amrit Singh Bedi , Ravi Tandon

The rapid growth of Large Language Models (LLMs) has highlighted the pressing need for reliable mechanisms to verify content ownership and ensure traceability. Watermarking offers a promising path forward, but it remains limited by privacy…

Cryptography and Security · Computer Science 2026-01-21 Thomas Fargues , Ye Dong , Tianwei Zhang , Jin-Song Dong

In-context learning (ICL) in Large Language Models (LLMs) has shown remarkable performance across various tasks without requiring fine-tuning. However, recent studies have highlighted the risk of private data leakage through the prompt in…

Artificial Intelligence · Computer Science 2025-09-16 Seongho Joo , Hyukhun Koh , Kyomin Jung

With the advancement of large language models (LLMs), significant progress has been achieved in various Natural Language Processing (NLP) tasks. However, existing LLMs still face two major challenges that hinder their broader adoption: (1)…

Information Retrieval · Computer Science 2026-01-28 Zhaofeng Zhong , Wei Yuan , Liang Qu , Tong Chen , Hao Wang , Xiangyu Zhao , Hongzhi Yin

Large language models (LLMs) are increasingly used as personal agents, accessing sensitive user data such as calendars, emails, and medical records. Users currently face a trade-off: They can send private records, many of which are stored…

Cryptography and Security · Computer Science 2025-11-04 Yubeen Bae , Minchan Kim , Jaejin Lee , Sangbum Kim , Jaehyung Kim , Yejin Choi , Niloofar Mireshghallah

As Large Language Models (LLMs) become integral to scientific workflows, concerns over the confidentiality and ethical handling of confidential data have emerged. This paper explores data exposure risks through LLM-powered scientific tools,…

Human-Computer Interaction · Computer Science 2025-04-15 Yashothara Shanmugarasa , Shidong Pan , Ming Ding , Dehai Zhao , Thierry Rakotoarivelo

Large Language Models (LLMs) deployed in enterprise settings (e.g., as Microsoft 365 Copilot) face novel security challenges. One critical threat is prompt inference attacks: adversaries chain together seemingly benign prompts to gradually…

Cryptography and Security · Computer Science 2025-07-22 Andrii Balashov , Olena Ponomarova , Xiaohua Zhai

Individuals and businesses have been significantly benefited by Large Language Models (LLMs) including PaLM, Gemini and ChatGPT in various ways. For example, LLMs enhance productivity, reduce costs, and enable us to focus on more valuable…

Cryptography and Security · Computer Science 2025-03-03 Xiaojin Zhang , Yahao Pang , Yan Kang , Wei Chen , Lixin Fan , Hai Jin , Qiang Yang

Large Language Models (LLMs) have emerged as a transformative force in artificial intelligence, demonstrating exceptional proficiency across various tasks. However, their deployment in resource-constrained environments and concerns over…

Computation and Language · Computer Science 2025-11-11 Tao Fan , Weijing Chen , Yan Kang , Guoqiang Ma , Hanlin Gu , Yuanfeng Song , Lixin Fan , Qiang Yang

Large Language Models (LLMs) are increasingly being used for automated evaluations and explaining them. However, concerns about explanation quality, consistency, and hallucinations remain open research challenges, particularly in…

Human-Computer Interaction · Computer Science 2025-04-18 Vincent Freiberger , Arthur Fleig , Erik Buchmann

Federated learning (FL) enhances privacy by keeping user data on local devices. However, emerging attacks have demonstrated that the updates shared by users during training can reveal significant information about their data. This has…

Large Language Models (LLMs) are increasingly deployed on converged Cloud and High-Performance Computing (HPC) infrastructure. However, as LLMs handle confidential inputs and are fine-tuned on costly, proprietary datasets, their heightened…

Performance · Computer Science 2025-09-24 Marcin Chrapek , Marcin Copik , Etienne Mettaz , Torsten Hoefler

The integration of Large Language Models (LLMs) into financial technology (FinTech) has revolutionized the analysis and processing of complex financial data, driving advancements in real-time decision-making and analytics. With the growing…

Cryptography and Security · Computer Science 2025-09-12 Sichen Zhu , Hoyeung Leung , Xiaoyi Wang , Jia Wei , Honghui Xu
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