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Pretrained language models sometimes possess knowledge that we do not wish them to, including memorized personal information and knowledge that could be used to harm people. They can also output toxic or harmful text. To mitigate these…

Computation and Language · Computer Science 2023-10-02 Vaidehi Patil , Peter Hase , Mohit Bansal

The proliferation of visual sensors in smart home environments, particularly through wearable devices like smart glasses, introduces profound privacy challenges. Existing privacy controls are often static and coarse-grained, failing to…

Human-Computer Interaction · Computer Science 2025-08-04 Shuning Zhang , Ying Ma , Xin Yi , Hewu Li

The data extraction stages of reviews are resource-intensive, and researchers may seek to expediate data extraction using online (large language models) LLMs and review protocols. Claude 3.5 Sonnet was used to trial two approaches that used…

Computation and Language · Computer Science 2025-07-10 James Stewart-Evans , Emma Wilson , Tessa Langley , Andrew Prayle , Angela Hands , Karen Exley , Jo Leonardi-Bee

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…

Software Engineering · Computer Science 2026-05-18 Yifei Ge , Zhenpeng Chen , Weisong Sun , Yuchen Chen , Chunrong Fang , Juan Zhai , Xiaofang Zhang , Xia Feng , Yang Liu , Zhenyu Chen

Malicious URL classification represents a crucial aspect of cyber security. Although existing work comprises numerous machine learning and deep learning-based URL classification models, most suffer from generalisation and domain-adaptation…

Artificial Intelligence · Computer Science 2024-09-24 Fariza Rashid , Nishavi Ranaweera , Ben Doyle , Suranga Seneviratne

Large language models (LLMs) show strong performance across many applications, but their ability to memorize and potentially reveal training data raises serious privacy concerns. We introduce the PopQuiz Attack, a black-box membership…

Cryptography and Security · Computer Science 2026-05-08 Zeyuan Chen , Yihan Ma , Xinyue Shen , Michael Backes , Yang Zhang

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…

Cryptography and Security · Computer Science 2024-12-10 Faqian Guan , Tianqing Zhu , Wenhan Chang , Wei Ren , Wanlei Zhou

Fine-tuning has emerged as a critical process in leveraging Large Language Models (LLMs) for specific downstream tasks, enabling these models to achieve state-of-the-art performance across various domains. However, the fine-tuning process…

Artificial Intelligence · Computer Science 2025-04-08 Hao Du , Shang Liu , Lele Zheng , Yang Cao , Atsuyoshi Nakamura , Lei Chen

This article explores the gaps that can manifest when using a large language model (LLM) to obtain simplified interpretations of data practices from a complex privacy policy. We exemplify these gaps to showcase issues in accuracy,…

Computation and Language · Computer Science 2025-09-03 Rinku Dewri

Large Language Models (LLMs) have raised increasing concerns about their misuse in generating hate speech. Among all the efforts to address this issue, hate speech detectors play a crucial role. However, the effectiveness of different…

Cryptography and Security · Computer Science 2025-01-29 Xinyue Shen , Yixin Wu , Yiting Qu , Michael Backes , Savvas Zannettou , Yang Zhang

The widespread adoption of Large Language Models (LLMs), exemplified by OpenAI's ChatGPT, brings to the forefront the imperative to defend against adversarial threats on these models. These attacks, which manipulate an LLM's output by…

Cryptography and Security · Computer Science 2025-04-04 Amelia Kawasaki , Andrew Davis , Houssam Abbas

Large Language Models (LLMs) have been applied to automate cyber security activities and processes including cyber investigation and digital forensics. However, the use of such models for cyber investigation and digital forensics should…

Cryptography and Security · Computer Science 2024-04-02 Jonathan Pan , Swee Liang Wong , Xin Wei Chia , Yidi Yuan

Large Language Models (LLMs) are intensively used to assist security analysts in counteracting the rapid exploitation of cyber threats, wherein LLMs offer cyber threat intelligence (CTI) to support vulnerability assessment and incident…

Cryptography and Security · Computer Science 2025-10-03 Luoxi Tang , Yuqiao Meng , Ankita Patra , Weicheng Ma , Muchao Ye , Zhaohan Xi

Large Language Models (LLMs) have gained prominence in various applications, including security. This paper explores the utility of LLMs in scam detection, a critical aspect of cybersecurity. Unlike traditional applications, we propose a…

Cryptography and Security · Computer Science 2024-02-06 Liming Jiang

Large Language Models (LLMs) are increasingly integrated into daily routines, yet they raise significant privacy and safety concerns. Recent research proposes collaborative inference, which outsources the early-layer inference to ensure…

Cryptography and Security · Computer Science 2025-07-23 Tian Dong , Yan Meng , Shaofeng Li , Guoxing Chen , Zhen Liu , Haojin Zhu

An increasing number of companies have begun providing services that leverage cloud-based large language models (LLMs), such as ChatGPT. However, this development raises substantial privacy concerns, as users' prompts are transmitted to and…

Cryptography and Security · Computer Science 2025-02-24 Shilong Hou , Ruilin Shang , Zi Long , Xianghua Fu , Yin Chen

Large language model (LLM)-based agents combine LLMs with external tools to automate tasks such as scheduling meetings, managing documents, or booking travel. While these integrations unlock powerful capabilities, they also create new and…

Cryptography and Security · Computer Science 2026-04-22 Jonathan Evertz , Merlin Chlosta , Lea Schönherr , Thorsten Eisenhofer

By inducing privacy attacks on NLP models, attackers can obtain sensitive information such as training data and model parameters, etc. Although researchers have studied, in-depth, several kinds of attacks in NLP models, they are…

Computation and Language · Computer Science 2024-10-02 Wei Huang , Yinggui Wang , Cen Chen

Large language model (LLM) services have been rapidly integrated into people's daily lives as chatbots and agentic systems. They are nourished by collecting rich streams of data, raising privacy concerns around excessive collection of…

Cryptography and Security · Computer Science 2025-12-01 Zhen Tao , Shidong Pan , Zhenchang Xing , Emily Black , Talia Gillis , Chunyang Chen

As the deployment of pre-trained language models (PLMs) expands, pressing security concerns have arisen regarding the potential for malicious extraction of training data, posing a threat to data privacy. This study is the first to provide a…

Computation and Language · Computer Science 2023-05-26 Shotaro Ishihara