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Multi-modal large language models (MLLMs) have emerged as powerful tools for analyzing Internet-scale image data, offering significant benefits but also raising critical safety and societal concerns. In particular, open-weight MLLMs may be…

计算机视觉与模式识别 · 计算机科学 2026-04-13 Zedian Shao , Hongbin Liu , Yuepeng Hu , Neil Zhenqiang Gong

The interactive nature of Large Language Models (LLMs), which closely track user data and context, has prompted users to share personal and private information in unprecedented ways. Even when users opt out of allowing their data to be used…

密码学与安全 · 计算机科学 2025-08-26 GodsGift Uzor , Hasan Al-Qudah , Ynes Ineza , Abdul Serwadda

Large Vision-Language Models (LVLMs) exhibit impressive potential across various tasks but also face significant privacy risks, limiting their practical applications. Current researches on privacy assessment for LVLMs is limited in scope,…

密码学与安全 · 计算机科学 2026-03-03 Jie Zhang , Xiangkui Cao , Zhouyu Han , Shiguang Shan , Xilin Chen

The rapid advancement and widespread use of large language models (LLMs) have raised significant concerns regarding the potential leakage of personally identifiable information (PII). These models are often trained on vast quantities of…

密码学与安全 · 计算机科学 2023-07-06 Siwon Kim , Sangdoo Yun , Hwaran Lee , Martin Gubri , Sungroh Yoon , Seong Joon Oh

The widespread adoption of Large Language Models (LLMs) has raised significant privacy concerns regarding the exposure of personally identifiable information (PII) in user prompts. To address this challenge, we propose a query-unrelated PII…

密码学与安全 · 计算机科学 2026-02-18 Hao Shen , Zhouhong Gu , Haokai Hong , Weili Han

Large Language Models (LLMs) have a privacy concern because they memorize training data (including personally identifiable information (PII) like emails and phone numbers) and leak it during inference. A company can train an LLM on its…

密码学与安全 · 计算机科学 2023-07-21 Jaydeep Borkar

Semantic communication has emerged as a promising paradigm for next-generation wireless systems, improving the communication efficiency by transmitting high-level semantic features. However, reliance on unimodal representations can degrade…

信号处理 · 电气工程与系统科学 2025-09-11 Haoran Chang , Mingzhe Chen , Huaxia Wang , Qianqian Zhang

Concerns regarding Large Language Models (LLMs) to memorize and disclose private information, particularly Personally Identifiable Information (PII), become prominent within the community. Many efforts have been made to mitigate the privacy…

机器学习 · 计算机科学 2024-05-21 Ruizhe Chen , Tianxiang Hu , Yang Feng , Zuozhu Liu

With the rise of large language models (LLMs), increasing research has recognized their risk of leaking personally identifiable information (PII) under malicious attacks. Although efforts have been made to protect PII in LLMs, existing…

We present PrivLEX, a novel image privacy classifier that grounds its decisions in legally defined personal data concepts. PrivLEX is the first interpretable privacy classifier aligned with legal concepts that leverages the recognition…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Darya Baranouskaya , Andrea Cavallaro

Predicting and explaining the private information contained in an image in human-understandable terms is a complex and contextual task. This task is challenging even for large language models. To facilitate the understanding of privacy…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Alina Elena Baia , Andrea Cavallaro

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…

Modern Vision-Language Models (VLMs) pose significant individual-level privacy risks by linking fragmented multimodal data to identifiable individuals through hierarchical chain-of-thought reasoning. However, existing privacy benchmarks…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Xiongtao Sun , Hui Li , Jiaming Zhang , Yujie Yang , Kaili Liu , Ruxin Feng , Wen Jun Tan , Wei Yang Bryan Lim

Large Language Models (LLMs) memorize, and thus, among huge amounts of uncontrolled data, may memorize Personally Identifiable Information (PII), which should not be stored and, consequently, not leaked. In this paper, we introduce Private…

密码学与安全 · 计算机科学 2025-08-22 Elena Sofia Ruzzetti , Giancarlo A. Xompero , Davide Venditti , Fabio Massimo Zanzotto

Users can divulge sensitive information to proprietary LLM providers, raising significant privacy concerns. While open-source models, hosted locally on the user's machine, alleviate some concerns, models that users can host locally are…

密码学与安全 · 计算机科学 2025-03-27 Li Siyan , Vethavikashini Chithrra Raghuram , Omar Khattab , Julia Hirschberg , Zhou Yu

The proliferation of Large Language Models (LLMs) has driven considerable interest in fine-tuning them with domain-specific data to create specialized language models. Nevertheless, such domain-specific fine-tuning data often contains…

Internet users have been exposing an increasing amount of Personally Identifiable Information (PII) on social media. Such exposed PII can cause severe losses to the users, and informing users of their PII exposure is crucial to raise their…

社会与信息网络 · 计算机科学 2021-11-19 Yizhi Liu , Fang Yu Lin , Mohammadreza Ebrahimi , Weifeng Li , Hsinchun Chen

As visual assistant systems powered by visual language models (VLMs) become more prevalent, concerns over user privacy have grown, particularly for blind and low vision users who may unknowingly capture personal private information in their…

计算机视觉与模式识别 · 计算机科学 2025-08-14 Jeffri Murrugarra-LLerena , Haoran Niu , K. Suzanne Barber , Hal Daumé , Yang Trista Cao , Paola Cascante-Bonilla

Face images are rich data items that are useful and can easily be collected in many applications, such as in 1-to-1 face verification tasks in the domain of security and surveillance systems. Multiple methods have been proposed to protect…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Ahmadreza Mosallanezhad , Yasin N. Silva , Michelle V. Mancenido , Huan Liu

Visual Language Models (VLMs) are often used for zero-shot detection of visual attributes in the image. We present a zero-shot evaluation of open-source VLMs for privacy-related attribute recognition. We identify the attributes for which…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Olena Hrynenko , Darya Baranouskaya , Alina Elena Baia , Andrea Cavallaro