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Recent advances in synthetic data generation (SDG) have been hailed as a solution to the difficult problem of sharing sensitive data while protecting privacy. SDG aims to learn statistical properties of real data in order to generate…

Machine Learning · Computer Science 2024-05-10 Meenatchi Sundaram Muthu Selva Annamalai , Andrea Gadotti , Luc Rocher

Wireless sensor networks (WSN) are widely used in vehicular networks to support Vehicle-to-Everything (V2X) communications. Wireless sensors in vehicular networks support sensing and monitoring of various environmental factors and vehicle…

Cryptography and Security · Computer Science 2025-04-17 Jae-Dong Kim , Dabin Kim , Minseok Ko , Jong-Moon Chung

Recent advances in ID-free recommender systems have attracted significant attention for effectively addressing the cold start problem. However, their vulnerability to malicious attacks remains largely unexplored. In this paper, we unveil a…

Information Retrieval · Computer Science 2025-04-29 Zongwei Wang , Min Gao , Junliang Yu , Xinyi Gao , Quoc Viet Hung Nguyen , Shazia Sadiq , Hongzhi Yin

Online recommender systems (RS) aim to match user needs with the vast amount of resources available on various platforms. A key challenge is to model user preferences accurately under the condition of data sparsity. To address this…

Information Retrieval · Computer Science 2023-09-20 Ning Wu , Ming Gong , Linjun Shou , Jian Pei , Daxin Jiang

This paper studies physical consequences of unobservable false data injection (FDI) attacks designed only with information inside a sub-network of the power system. The goal of this attack is to overload a chosen target line without being…

Systems and Control · Computer Science 2018-05-03 Jiazi Zhang , Zhigang Chu , Lalitha Sankar , Oliver Kosut

Federated learning (FL) is a feasible technique to learn personalized recommendation models from decentralized user data. Unfortunately, federated recommender systems are vulnerable to poisoning attacks by malicious clients. Existing…

Information Retrieval · Computer Science 2022-02-11 Chuhan Wu , Fangzhao Wu , Tao Qi , Yongfeng Huang , Xing Xie

Graphical User Interface (GUI) agents powered by Large Vision-Language Models (LVLMs) have emerged as a revolutionary approach to automating human-machine interactions, capable of autonomously operating personal devices (e.g., mobile…

Computation and Language · Computer Science 2025-09-25 Ziang Ye , Yang Zhang , Wentao Shi , Xiaoyu You , Fuli Feng , Tat-Seng Chua

False data injection attacks pose a significant threat to autonomous multi-agent systems (MASs). Existing attack-resilient control strategies generally have strict assumptions on the attack signals and overlook safety constraints, such as…

Systems and Control · Electrical Eng. & Systems 2025-05-06 Yichao Wang , Mohamadamin Rajabinezhad , Dimitra Panagou , Shan Zuo

Active re-identification attacks pose a serious threat to privacy-preserving social graph publication. Active attackers create fake accounts to build structural patterns in social graphs which can be used to re-identify legitimate users on…

Social and Information Networks · Computer Science 2020-09-15 Xihui Chen , Ema Këpuska , Sjouke Mauw , Yunior Ramírez-Cruz

Large language models (LLMs) have shown remarkable performance across a range of NLP tasks. However, their strong instruction-following capabilities and inability to distinguish instructions from data content make them vulnerable to…

Cryptography and Security · Computer Science 2025-10-07 Yulin Chen , Haoran Li , Yuexin Li , Yue Liu , Yangqiu Song , Bryan Hooi

Phishing is an online identity theft technique where attackers steal users personal information, leading to financial losses for individuals and organizations. With the increasing adoption of smartphones, which provide functionalities…

Cryptography and Security · Computer Science 2025-01-03 Diksha Goel

Intrusion detection systems (IDS) reinforce cyber defense by autonomously monitoring various data sources for traces of attacks. However, IDSs are also infamous for frequently raising false positives and alerts that are difficult to…

Cryptography and Security · Computer Science 2024-09-04 Max Landauer , Florian Skopik , Markus Wurzenberger

While sequential recommender systems achieve significant improvements on capturing user dynamics, we argue that sequential recommenders are vulnerable against substitution-based profile pollution attacks. To demonstrate our hypothesis, we…

Information Retrieval · Computer Science 2022-07-25 Zhenrui Yue , Huimin Zeng , Ziyi Kou , Lanyu Shang , Dong Wang

The critical challenge of prompt injection attacks in Large Language Models (LLMs) integrated applications, a growing concern in the Artificial Intelligence (AI) field. Such attacks, which manipulate LLMs through natural language inputs,…

Cryptography and Security · Computer Science 2024-01-17 Xuchen Suo

This paper addresses active re-identification attacks in the context of privacy-preserving social graph publication. Active attacks are those where the adversary can leverage fake accounts, a.k.a. sybil nodes, to enforce structural patterns…

Social and Information Networks · Computer Science 2020-07-13 Sjouke Mauw , Yunior Ramírez-Cruz , Rolando Trujillo-Rasua

In a spoofing attack, an attacker impersonates a legitimate user to access or tamper with data intended for or produced by the legitimate user. In wireless communication systems, these attacks may be detected by relying on features of the…

Machine Learning · Computer Science 2022-11-09 Daniel Romero , Peter Gerstoft , Hadi Givehchian , Dinesh Bharadia

Sub-sequence splitting (SSS) has been demonstrated as an effective approach to mitigate data sparsity in sequential recommendation (SR) by splitting a raw user interaction sequence into multiple sub-sequences. Previous studies have…

Information Retrieval · Computer Science 2026-04-08 Yizhou Dang , Yifan Wu , Minhan Huang , Chuang Zhao , Lianbo Ma , Guibing Guo , Xingwei Wang , Zhu Sun

In recent years, person Re-identification (ReID) has rapidly progressed with wide real-world applications, but also poses significant risks of adversarial attacks. In this paper, we focus on the backdoor attack on deep ReID models. Existing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Wenli Sun , Xinyang Jiang , Shuguang Dou , Dongsheng Li , Duoqian Miao , Cheng Deng , Cairong Zhao

Member inference (MI) attacks aim to determine if a specific data sample was used to train a machine learning model. Thus, MI is a major privacy threat to models trained on private sensitive data, such as medical records. In MI attacks one…

Machine Learning · Computer Science 2022-05-30 Gilad Cohen , Raja Giryes

Person re-identification is a critical privacy attack in publicly shared healthcare data as per Health Insurance Portability and Accountability Act (HIPAA) privacy rule. In this paper, we investigate the possibility of a new type of privacy…

Cryptography and Security · Computer Science 2021-06-23 Mohammad Arif Ul Alam