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Despite the remarkable capabilities demonstrated by Graph Neural Networks (GNNs) in graph-related tasks, recent research has revealed the fairness vulnerabilities in GNNs when facing malicious adversarial attacks. However, all existing…

Machine Learning · Computer Science 2024-10-31 Zihan Luo , Hong Huang , Yongkang Zhou , Jiping Zhang , Nuo Chen , Hai Jin

Backdoor attacks represent a serious threat to neural network models. A backdoored model will misclassify the trigger-embedded inputs into an attacker-chosen target label while performing normally on other benign inputs. There are already…

Machine Learning · Computer Science 2021-07-14 Jing Xu , Minhui , Xue , Stjepan Picek

Graph Neural Networks (GNNs) are widely adopted to analyse non-Euclidean data, such as chemical networks, brain networks, and social networks, modelling complex relationships and interdependency between objects. Recently, Membership…

Machine Learning · Computer Science 2021-10-19 Bang Wu , Xiangwen Yang , Shirui Pan , Xingliang Yuan

Graph Neural Networks (GNNs) have emerged as powerful models for learning from graph-structured data. However, their widespread adoption has raised serious privacy concerns. While prior research has primarily focused on edge-level privacy,…

Machine Learning · Computer Science 2025-11-12 Jie Fu , Yuan Hong , Zhili Chen , Wendy Hui Wang

Graph neural networks (GNNs) which apply the deep neural networks to graph data have achieved significant performance for the task of semi-supervised node classification. However, only few work has addressed the adversarial robustness of…

Machine Learning · Computer Science 2019-10-16 Kaidi Xu , Hongge Chen , Sijia Liu , Pin-Yu Chen , Tsui-Wei Weng , Mingyi Hong , Xue Lin

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

False data injection attacks (FDIA) are a main category of cyber-attacks threatening the security of power systems. Contrary to the detection of these attacks, less attention has been paid to identifying the attacked units of the grid. To…

Machine Learning · Computer Science 2021-12-28 Osman Boyaci , Mohammad Rasoul Narimani , Katherine Davis , Muhammad Ismail , Thomas J Overbye , Erchin Serpedin

Graph Neural Networks (GNNs) have emerged as potent models for graph learning. Distributing the training process across multiple computing nodes is the most promising solution to address the challenges of ever-growing real-world graphs.…

Machine Learning · Computer Science 2024-05-13 Yuxiang Zhang , Xin Liu , Meng Wu , Wei Yan , Mingyu Yan , Xiaochun Ye , Dongrui Fan

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 Neural Networks (GNNs) are powerful in learning rich network representations that aid the performance of downstream tasks. However, recent studies showed that GNNs are vulnerable to adversarial attacks involving node injection and…

Machine Learning · Computer Science 2023-09-11 Ansh Kumar Sharma , Rahul Kukreja , Mayank Kharbanda , Tanmoy Chakraborty

Backdoor attack is a powerful attack algorithm to deep learning model. Recently, GNN's vulnerability to backdoor attack has been proved especially on graph classification task. In this paper, we propose the first backdoor detection and…

Artificial Intelligence · Computer Science 2022-09-08 Bingchen Jiang , Zhao Li

Graph Neural Networks (GNNs) have achieved promising results in various tasks such as node classification and graph classification. Recent studies find that GNNs are vulnerable to adversarial attacks. However, effective backdoor attacks on…

Cryptography and Security · Computer Science 2023-03-03 Enyan Dai , Minhua Lin , Xiang Zhang , Suhang Wang

We present evidence for the existence and effectiveness of adversarial attacks on graph neural networks (GNNs) that aim to degrade fairness. These attacks can disadvantage a particular subgroup of nodes in GNN-based node classification,…

Machine Learning · Computer Science 2023-02-07 Hussain Hussain , Meng Cao , Sandipan Sikdar , Denis Helic , Elisabeth Lex , Markus Strohmaier , Roman Kern

Graph neural networks (GNNs) are widely used in many applications. However, their robustness against adversarial attacks is criticized. Prior studies show that using unnoticeable modifications on graph topology or nodal features can…

Machine Learning · Computer Science 2020-02-27 Xianfeng Tang , Yandong Li , Yiwei Sun , Huaxiu Yao , Prasenjit Mitra , Suhang Wang

False data injection attacks (FDIAs) pose a significant security threat to power system state estimation. To detect such attacks, recent studies have proposed machine learning (ML) techniques, particularly deep neural networks (DNNs).…

Cryptography and Security · Computer Science 2023-05-12 Jiangnan Li , Yingyuan Yang , Jinyuan Stella Sun , Kevin Tomsovic , Hairong Qi

Graph Neural Networks (GNNs) have received significant attention due to their state-of-the-art performance on various graph representation learning tasks. However, recent studies reveal that GNNs are vulnerable to adversarial attacks, i.e.…

Machine Learning · Computer Science 2024-10-28 Haoxi Zhan , Xiaobing Pei

Node injection attacks on Graph Neural Networks (GNNs) have received increasing attention recently, due to their ability to degrade GNN performance with high attack success rates. However, our study indicates that these attacks often fail…

Machine Learning · Computer Science 2023-09-26 Shuchang Tao , Qi Cao , Huawei Shen , Yunfan Wu , Liang Hou , Fei Sun , Xueqi Cheng

Graph Neural Networks (GNNs) have shown remarkable performance in various tasks. However, recent works reveal that GNNs are vulnerable to backdoor attacks. Generally, backdoor attack poisons the graph by attaching backdoor triggers and the…

Machine Learning · Computer Science 2024-07-15 Zhiwei Zhang , Minhua Lin , Enyan Dai , Suhang Wang

Backdoor attacks have been demonstrated as a security threat for machine learning models. Traditional backdoor attacks intend to inject backdoor functionality into the model such that the backdoored model will perform abnormally on inputs…

Machine Learning · Computer Science 2023-04-19 Jing Xu , Gorka Abad , Stjepan Picek

Graph neural networks (GNNs) have achieved tremendous success in the task of graph classification and its diverse downstream real-world applications. Despite the huge success in learning graph representations, current GNN models have…

Social and Information Networks · Computer Science 2023-09-07 Xin Wang , Heng Chang , Beini Xie , Tian Bian , Shiji Zhou , Daixin Wang , Zhiqiang Zhang , Wenwu Zhu