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Graph neural networks (GNNs) have become instrumental in diverse real-world applications, offering powerful graph learning capabilities for tasks such as social networks and medical data analysis. Despite their successes, GNNs are…

Machine Learning · Computer Science 2024-06-13 Peizhi Niu , Chao Pan , Siheng Chen , Olgica Milenkovic

Machine learning models' goal is to make correct predictions for specific tasks by learning important properties and patterns from data. By doing so, there is a chance that the model learns properties that are unrelated to its primary task.…

Cryptography and Security · Computer Science 2021-04-28 Mathias P. M. Parisot , Balazs Pejo , Dayana Spagnuelo

In this paper, we present a stealthy and effective attack that exposes privacy vulnerabilities in Graph Neural Networks (GNNs) by inferring private links within graph-structured data. Focusing on the inductive setting where new nodes join…

Cryptography and Security · Computer Science 2023-07-26 Oualid Zari , Javier Parra-Arnau , Ayşe Ünsal , Melek Önen

The last few years have seen an increasing wave of attacks with serious economic and privacy damages, which evinces the need for accurate Network Intrusion Detection Systems (NIDS). Recent works propose the use of Machine Learning (ML)…

Cryptography and Security · Computer Science 2021-08-02 David Pujol-Perich , José Suárez-Varela , Albert Cabellos-Aparicio , Pere Barlet-Ros

Graph embeddings have been proposed to map graph data to low dimensional space for downstream processing (e.g., node classification or link prediction). With the increasing collection of personal data, graph embeddings can be trained on…

Cryptography and Security · Computer Science 2021-09-28 Vasisht Duddu , Antoine Boutet , Virat Shejwalkar

Graph generative diffusion models have recently emerged as a powerful paradigm for generating complex graph structures, effectively capturing intricate dependencies and relationships within graph data. However, the privacy risks associated…

Machine Learning · Computer Science 2026-01-08 Xiuling Wang , Xin Huang , Guibo Luo , Jianliang Xu

The success of deep neural networks has driven numerous research studies and applications from Euclidean to non-Euclidean data. However, there are increasing concerns about privacy leakage, as these networks rely on processing private data.…

Machine Learning · Computer Science 2025-11-03 Zhanke Zhou , Jianing Zhu , Fengfei Yu , Xuan Li , Xiong Peng , Tongliang Liu , Bo Han

Neural network-based image classifiers are powerful tools for computer vision tasks, but they inadvertently reveal sensitive attribute information about their classes, raising concerns about their privacy. To investigate this privacy…

Machine Learning · Computer Science 2023-06-14 Lukas Struppek , Dominik Hintersdorf , Felix Friedrich , Manuel Brack , Patrick Schramowski , Kristian Kersting

Graph Neural Networks (GNNs) have become indispensable tools for learning from graph structured data, catering to various applications such as social network analysis and fraud detection for financial services. At the heart of these…

Cryptography and Security · Computer Science 2025-06-02 Zeyu Song , Ehsanul Kabir , Shagufta Mehnaz

Graph neural networks (GNNs) are susceptible to privacy inference attacks (PIAs), given their ability to learn joint representation from features and edges among nodes in graph data. To prevent privacy leakages in GNNs, we propose a novel…

Machine Learning · Computer Science 2022-11-11 Khang Tran , Phung Lai , NhatHai Phan , Issa Khalil , Yao Ma , Abdallah Khreishah , My Thai , Xintao Wu

Graph data, such as chemical networks and social networks, may be deemed confidential/private because the data owner often spends lots of resources collecting the data or the data contains sensitive information, e.g., social relationships.…

Cryptography and Security · Computer Science 2020-10-07 Xinlei He , Jinyuan Jia , Michael Backes , Neil Zhenqiang Gong , Yang Zhang

Graph neural networks (GNNs) have achieved remarkable success in various real-world applications. However, recent studies highlight the vulnerability of GNNs to malicious perturbations. Previous adversaries primarily focus on graph…

Machine Learning · Computer Science 2023-05-05 Dayuan Chen , Jian Zhang , Yuqian Lv , Jinhuan Wang , Hongjie Ni , Shanqing Yu , Zhen Wang , Qi Xuan

Graph neural networks (GNNs) provide important prospective insights in applications such as social behavior analysis and financial risk analysis based on their powerful learning capabilities on graph data. Nevertheless, GNNs' predictive…

Machine Learning · Computer Science 2024-12-23 Yuecen Wei , Xingcheng Fu , Lingyun Liu , Qingyun Sun , Hao Peng , Chunming Hu

Machine learning models can leak private information about their training data. The standard methods to measure this privacy risk, based on membership inference attacks (MIAs), only check if a given data point \textit{exactly} matches a…

Machine Learning · Computer Science 2025-09-11 Jiashu Tao , Reza Shokri

Graph neural network (GNN) is a powerful tool for analyzing graph-structured data. However, their vulnerability to adversarial attacks raises serious concerns, especially when dealing with sensitive information. Local Differential Privacy…

Machine Learning · Computer Science 2026-03-24 Matta Varun , Ajay Kumar Dhakar , Yuan Hong , Shamik Sural

We propose GNNInfer, the first automatic property inference technique for GNNs. To tackle the challenge of varying input structures in GNNs, GNNInfer first identifies a set of representative influential structures that contribute…

Machine Learning · Computer Science 2024-03-05 Dat Nguyen , Hieu M. Vu , Cong-Thanh Le , Bach Le , David Lo , ThanhVu Nguyen , Corina Pasareanu

We study the privacy implications of training recurrent neural networks (RNNs) with sensitive training datasets. Considering membership inference attacks (MIAs), which aim to infer whether or not specific data records have been used in…

Cryptography and Security · Computer Science 2023-01-23 Yunhao Yang , Parham Gohari , Ufuk Topcu

This paper presents how to leak private information from a wireless signal classifier by launching an over-the-air membership inference attack (MIA). As machine learning (ML) algorithms are used to process wireless signals to make decisions…

Signal Processing · Electrical Eng. & Systems 2020-06-26 Yi Shi , Kemal Davaslioglu , Yalin E. Sagduyu

Graph-structured data, which captures non-Euclidean relationships and interactions between entities, is growing in scale and complexity. As a result, training state-of-the-art graph machine learning (GML) models have become increasingly…

Cryptography and Security · Computer Science 2025-08-28 Lincan Li , Bolin Shen , Chenxi Zhao , Yuxiang Sun , Kaixiang Zhao , Shirui Pan , Yushun Dong

Machine learning models often pose a threat to the privacy of individuals whose data is part of the training set. Several recent attacks have been able to infer sensitive information from trained models, including model inversion or…

Machine Learning · Computer Science 2020-06-30 Abigail Goldsteen , Gilad Ezov , Ariel Farkash