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Federated learning (FL) enables a set of entities to collaboratively train a machine learning model without sharing their sensitive data, thus, mitigating some privacy concerns. However, an increasing number of works in the literature…

Cryptography and Security · Computer Science 2022-01-04 Aidmar Wainakh , Ephraim Zimmer , Sandeep Subedi , Jens Keim , Tim Grube , Shankar Karuppayah , Alejandro Sanchez Guinea , Max Mühlhäuser

Federated learning (FL) is a new paradigm for distributed machine learning that allows a global model to be trained across multiple clients without compromising their privacy. Although FL has demonstrated remarkable success in various…

Machine Learning · Computer Science 2023-06-06 Haolin Wang , Xuefeng Liu , Jianwei Niu , Shaojie Tang , Jiaxing Shen

Recent works have brought attention to the vulnerability of Federated Learning (FL) systems to gradient leakage attacks. Such attacks exploit clients' uploaded gradients to reconstruct their sensitive data, thereby compromising the privacy…

Machine Learning · Computer Science 2025-06-11 Mingyuan Fan , Cen Chen , Chengyu Wang , Xiaodan Li , Wenmeng Zhou

Gradient inversion attacks are often presented as a serious privacy threat in federated learning, with recent work reporting increasingly strong reconstructions under favorable experimental settings. However, it remains unclear whether such…

Cryptography and Security · Computer Science 2026-02-10 Viktor Valadi , Mattias Åkesson , Johan Östman , Fazeleh Hoseini , Salman Toor , Andreas Hellander

Federated Learning (FL) is a promising distributed learning approach that enables multiple clients to collaboratively train a shared global model. However, recent studies show that FL is vulnerable to various poisoning attacks, which can…

Cryptography and Security · Computer Science 2023-10-23 Xinyu Zhang , Qingyu Liu , Zhongjie Ba , Yuan Hong , Tianhang Zheng , Feng Lin , Li Lu , Kui Ren

Federated Learning (FL) enables multiple clients to collaboratively train a shared model without exposing local data. However, backdoor attacks pose a significant threat to FL. These attacks aim to implant a stealthy trigger into the global…

Machine Learning · Computer Science 2026-01-06 Chenyu Hu , Qiming Hu , Sinan Chen , Nianyu Li , Mingyue Zhang , Jialong Li

In a federated learning (FL) system, malicious participants can easily embed backdoors into the aggregated model while maintaining the model's performance on the main task. To this end, various defenses, including training stage…

Machine Learning · Computer Science 2023-05-30 Henger Li , Chen Wu , Sencun Zhu , Zizhan Zheng

Healthcare is one of the foremost applications of machine learning (ML). Traditionally, ML models are trained by central servers, which aggregate data from various distributed devices to forecast the results for newly generated data. This…

Machine Learning · Computer Science 2023-10-12 Sankalp Vyas , Amar Nath Patra , Raj Mani Shukla

Federated learning (FL) is vulnerable to backdoor attacks, where adversaries alter model behavior on target classification labels by embedding triggers into data samples. While these attacks have received considerable attention in…

Federated learning allows multiple clients to collaboratively train a global model with the assistance of a server. However, its distributed nature makes it susceptible to poisoning attacks, where malicious clients can compromise the global…

Cryptography and Security · Computer Science 2025-01-30 Wenbin Wang , Qiwen Ma , Zifan Zhang , Yuchen Liu , Zhuqing Liu , Minghong Fang

Federated learning (FL) is an emerging paradigm that enables multiple organizations to jointly train a model without revealing their private data to each other. This paper studies {\it vertical} federated learning, which tackles the…

Cryptography and Security · Computer Science 2020-08-17 Yuncheng Wu , Shaofeng Cai , Xiaokui Xiao , Gang Chen , Beng Chin Ooi

Federated Learning (FL) is an innovative approach to distributed machine learning. While FL offers significant privacy advantages, it also faces security challenges, particularly from poisoning attacks where adversaries deliberately…

Cryptography and Security · Computer Science 2024-09-23 Borja Molina-Coronado

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…

Cryptography and Security · Computer Science 2025-07-01 Ankit Gangwal , Mauro Conti , Tommaso Pauselli

Federated learning is vulnerable to poisoning attacks by malicious adversaries. Existing methods often involve high costs to achieve effective attacks. To address this challenge, we propose a sybil-based virtual data poisoning attack, where…

Cryptography and Security · Computer Science 2025-05-16 Changxun Zhu , Qilong Wu , Lingjuan Lyu , Shibei Xue

Federated learning (FL) is a distributed machine learning approach where multiple clients collaboratively train a joint model without exchanging their data. Despite FL's unprecedented success in data privacy-preserving, its vulnerability to…

Machine Learning · Computer Science 2022-06-14 Jinyin Chen , Mingjun Li , Tao Liu , Haibin Zheng , Yao Cheng , Changting Lin

There has been recent interest in leveraging federated learning (FL) for radio signal classification tasks. In FL, model parameters are periodically communicated from participating devices, training on their own local datasets, to a central…

Signal Processing · Electrical Eng. & Systems 2023-01-24 Su Wang , Rajeev Sahay , Christopher G. Brinton

We present a Federated Learning (FL) based solution for building a distributed classifier capable of detecting URLs containing GDPR-sensitive content related to categories such as health, sexual preference, political beliefs, etc. Although…

Cryptography and Security · Computer Science 2024-04-09 Tianyue Chu , Alvaro Garcia-Recuero , Costas Iordanou , Georgios Smaragdakis , Nikolaos Laoutaris

Federated learning (FL) is vulnerable to poisoning attacks, where adversaries corrupt the global aggregation results and cause denial-of-service (DoS). Unlike recent model poisoning attacks that optimize the amplitude of malicious…

Machine Learning · Computer Science 2024-09-27 Hangtao Zhang , Zeming Yao , Leo Yu Zhang , Shengshan Hu , Chao Chen , Alan Liew , Zhetao Li

As machine learning models grow in complexity and increasingly rely on publicly sourced data, such as the human-annotated labels used in training large language models, they become more vulnerable to label poisoning attacks. These attacks,…

Machine Learning · Computer Science 2025-02-25 Melis Ilayda Bal , Volkan Cevher , Michael Muehlebach

Federated Learning (FL) facilitates decentralized machine learning model training, preserving data privacy, lowering communication costs, and boosting model performance through diversified data sources. Yet, FL faces vulnerabilities such as…

Machine Learning · Computer Science 2023-09-11 Torsten Krauß , Alexandra Dmitrienko
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