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Federated Learning (FL) enables collaborative model training across multiple clients while preserving data privacy by keeping local datasets on-device. In this work, we address FL settings where clients may behave adversarially, exhibiting…

机器学习 · 计算机科学 2025-08-26 Emmanouil Kritharakis , Antonios Makris , Dusan Jakovetic , Konstantinos Tserpes

Federated recommendation systems can provide good performance without collecting users' private data, making them attractive. However, they are susceptible to low-cost poisoning attacks that can degrade their performance. In this paper, we…

机器学习 · 计算机科学 2020-06-16 Chen Chen , Jingfeng Zhang , Anthony K. H. Tung , Mohan Kankanhalli , Gang Chen

While Federated learning (FL) is attractive for pulling privacy-preserving distributed training data, the credibility of participating clients and non-inspectable data pose new security threats, of which poisoning attacks are particularly…

密码学与安全 · 计算机科学 2023-09-20 Zizhen Liu , Weiyang He , Chip-Hong Chang , Jing Ye , Huawei Li , Xiaowei Li

Adversarial attacks such as poisoning attacks have attracted the attention of many machine learning researchers. Traditionally, poisoning attacks attempt to inject adversarial training data in order to manipulate the trained model. In…

机器学习 · 计算机科学 2025-03-26 Ali Raza , Shujun Li , Kim-Phuc Tran , Ludovic Koehl , Kim Duc Tran

Federated Learning (FL) emerged as a widely studied paradigm for distributed learning. Despite its many advantages, FL remains vulnerable to adversarial attacks, especially under data heterogeneity. We propose a new Byzantine-robust FL…

机器学习 · 计算机科学 2025-09-12 Sena Ergisi , Luis Maßny , Rawad Bitar

As high quality public data becomes scarce, Federated Learning (FL) provides a vital pathway to leverage valuable private user data while preserving privacy. However, real-world client data often contains toxic or unsafe information. This…

密码学与安全 · 计算机科学 2026-04-09 Shunan Zhu , Jiawei Chen , Yonghao Yu , Hideya Ochiai

Federated learning (FL) is a promising technique for learning-based functions in wireless networks, thanks to its distributed implementation capability. On the other hand, distributed learning may increase the risk of exposure to malicious…

机器学习 · 计算机科学 2025-04-28 Han Zhang , Hao Zhou , Medhat Elsayed , Majid Bavand , Raimundas Gaigalas , Yigit Ozcan , Melike Erol-Kantarci

The distributed nature of training makes Federated Learning (FL) vulnerable to backdoor attacks, where malicious model updates aim to compromise the global model's performance on specific tasks. Existing defense methods show limited…

机器学习 · 计算机科学 2025-03-20 Jiahao Xu , Zikai Zhang , Rui Hu

Federated Learning (FL) faces two major issues: privacy leakage and poisoning attacks, which may seriously undermine the reliability and security of the system. Overcoming them simultaneously poses a great challenge. This is because privacy…

密码学与安全 · 计算机科学 2023-12-05 Yisheng Zhong , Li-Ping Wang

Federated learning (FL) enables multiple clients to collaboratively train a global model by aggregating local updates without sharing private data. However, FL often faces the challenge of free-riders, clients who submit fake model…

机器学习 · 计算机科学 2026-04-07 Motoki Nakamura

Federated learning (FL) enables collaborative model training while preserving data privacy, but its decentralized nature exposes it to client-side data poisoning attacks (DPAs) and model poisoning attacks (MPAs) that degrade global model…

密码学与安全 · 计算机科学 2025-02-07 Heyi Zhang , Yule Liu , Xinlei He , Jun Wu , Tianshuo Cong , Xinyi Huang

Due to the greatly improved capabilities of devices, massive data, and increasing concern about data privacy, Federated Learning (FL) has been increasingly considered for applications to wireless communication networks (WCNs). Wireless FL…

密码学与安全 · 计算机科学 2023-12-15 Yichen Wan , Youyang Qu , Wei Ni , Yong Xiang , Longxiang Gao , Ekram Hossain

Federated learning (FL) allows a set of agents to collaboratively train a model without sharing their potentially sensitive data. This makes FL suitable for privacy-preserving applications. At the same time, FL is susceptible to adversarial…

机器学习 · 计算机科学 2021-08-02 Mustafa Safa Ozdayi , Murat Kantarcioglu , Yulia R. Gel

Recent attacks on federated learning (FL) can introduce malicious model updates that circumvent widely adopted Euclidean distance-based detection methods. This paper proposes a novel defense strategy, referred to as LayerCAM-AE, designed to…

密码学与安全 · 计算机科学 2024-06-06 Jingjing Zheng , Xin Yuan , Kai Li , Wei Ni , Eduardo Tovar , Jon Crowcroft

Federated Learning enables collaborative training of machine learning models on decentralized data. This scheme, however, is vulnerable to adversarial attacks, when some of the clients submit corrupted model updates. In real-world…

机器学习 · 计算机科学 2025-05-06 Aleksandr Karakulev , Usama Zafar , Salman Toor , Prashant Singh

In a federated learning (FL) system, decentralized data owners (clients) could upload their locally trained models to a central server, to jointly train a global model. Malicious clients may plant backdoors into the global model through…

密码学与安全 · 计算机科学 2024-06-03 Songze Li , Yanbo Dai

Byzantine-robust federated learning aims to enable a service provider to learn an accurate global model when a bounded number of clients are malicious. The key idea of existing Byzantine-robust federated learning methods is that the service…

密码学与安全 · 计算机科学 2022-04-13 Xiaoyu Cao , Minghong Fang , Jia Liu , Neil Zhenqiang Gong

Decentralized learning is vulnerable to poison attacks, where malicious clients manipulate local updates to degrade global model performance. Existing defenses mainly detect and filter malicious models, aiming to prevent a limited number of…

密码学与安全 · 计算机科学 2025-06-19 Xiangman Li , Xiaodong Wu , Jianbing Ni , Mohamed Mahmoud , Maazen Alsabaan

Federated learning (FL) combined with local differential privacy (LDP) enables privacy-preserving model training across decentralized data sources. However, the decentralized data-management paradigm leaves LDPFL vulnerable to participants…

密码学与安全 · 计算机科学 2025-09-08 Zijian Wang , Wei Tong , Tingxuan Han , Haoyu Chen , Tianling Zhang , Yunlong Mao , Sheng Zhong

Federated Learning (FL) enables multiple users to collaboratively train a global model in a distributed manner without revealing their personal data. However, FL remains vulnerable to model poisoning attacks, where malicious actors inject…

密码学与安全 · 计算机科学 2025-07-01 Ankit Gangwal , Mauro Conti , Tommaso Pauselli