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Related papers: Enhancing Privacy of Spatiotemporal Federated Lear…

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Recent works show that sensitive user data can be reconstructed from gradient updates, breaking the key privacy promise of federated learning. While success was demonstrated primarily on image data, these methods do not directly transfer to…

Machine Learning · Computer Science 2024-10-22 Lele Zheng , Yang Cao , Renhe Jiang , Kenjiro Taura , Yulong Shen , Sheng Li , Masatoshi Yoshikawa

Federated Learning (FL) has emerged as a promising privacy-preserving collaborative model training paradigm without sharing raw data. However, recent studies have revealed that private information can still be leaked through shared gradient…

Cryptography and Security · Computer Science 2026-01-12 Pengxin Guo , Runxi Wang , Shuang Zeng , Jinjing Zhu , Haoning Jiang , Yanran Wang , Yuyin Zhou , Feifei Wang , Hui Xiong , Liangqiong Qu

One of the key advantages of Federated Learning (FL) is its ability to collaboratively train a Machine Learning (ML) model while keeping clients' data on-site. However, this can create a false sense of security. Despite not sharing private…

Cryptography and Security · Computer Science 2026-05-26 Vincenzo Carletti , Pasquale Foggia , Carlo Mazzocca , Giuseppe Parrella , Mario Vento

Gradient inversion attack (or input recovery from gradient) is an emerging threat to the security and privacy preservation of Federated learning, whereby malicious eavesdroppers or participants in the protocol can recover (partially) the…

Cryptography and Security · Computer Science 2021-12-02 Yangsibo Huang , Samyak Gupta , Zhao Song , Kai Li , Sanjeev Arora

Federated learning (FL) has emerged as a transformative framework for privacy-preserving distributed training, allowing clients to collaboratively train a global model without sharing their local data. This is especially crucial in…

Machine Learning · Computer Science 2025-06-23 Le Jiang , Liyan Ma , Guang Yang

Gradient inversion attack enables recovery of training samples from model gradients in federated learning (FL), and constitutes a serious threat to data privacy. To mitigate this vulnerability, prior work proposed both principled defenses…

Machine Learning · Computer Science 2023-06-13 Ruihan Wu , Xiangyu Chen , Chuan Guo , Kilian Q. Weinberger

Federated Learning (FL) has emerged as a leading paradigm for decentralized, privacy preserving machine learning training. However, recent research on gradient inversion attacks (GIAs) have shown that gradient updates in FL can leak…

Cryptography and Security · Computer Science 2024-05-20 Yichuan Shi , Olivera Kotevska , Viktor Reshniak , Abhishek Singh , Ramesh Raskar

Federated Learning (FL) aims to protect data privacy by enabling clients to collectively train machine learning models without sharing their raw data. However, recent studies demonstrate that information exchanged during FL is subject to…

Machine Learning · Computer Science 2024-12-11 Pengxin Guo , Shuang Zeng , Wenhao Chen , Xiaodan Zhang , Weihong Ren , Yuyin Zhou , Liangqiong Qu

The increasing need for sharing healthcare data and collaborating on clinical research has raised privacy concerns. Health information leakage due to malicious attacks can lead to serious problems such as misdiagnoses and patient…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Shiyi Jiang , Farshad Firouzi , Krishnendu Chakrabarty

Federated learning (FL) facilitates collaborative model training among multiple clients without raw data exposure. However, recent studies have shown that clients' private training data can be reconstructed from shared gradients in FL, a…

Cryptography and Security · Computer Science 2025-02-06 Jiacheng Du , Jiahui Hu , Zhibo Wang , Peng Sun , Neil Zhenqiang Gong , Kui Ren , Chun Chen

Federated learning (FL) has emerged as a privacy-preserving machine learning approach where multiple parties share gradient information rather than original user data. Recent work has demonstrated that gradient inversion attacks can exploit…

Machine Learning · Computer Science 2024-05-07 Jin Qian , Kaimin Wei , Yongdong Wu , Jilian Zhang , Jipeng Chen , Huan Bao

Federated learning (FL) enables collaborative model training without sharing raw data but is vulnerable to gradient inversion attacks (GIAs), where adversaries reconstruct private data from shared gradients. Existing defenses either incur…

Cryptography and Security · Computer Science 2025-10-07 Chenxiang Luo , David K. Y. Yau , Qun Song

Collaborative learning (CL) is a distributed learning framework that aims to protect user privacy by allowing users to jointly train a model by sharing their gradient updates only. However, gradient inversion attacks (GIAs), which recover…

Cryptography and Security · Computer Science 2024-01-31 Lulu Xue , Shengshan Hu , Ruizhi Zhao , Leo Yu Zhang , Shengqing Hu , Lichao Sun , Dezhong Yao

Gradient Inversion (GI) attacks are a ubiquitous threat in Federated Learning (FL) as they exploit gradient leakage to reconstruct supposedly private training data. Common defense mechanisms such as Differential Privacy (DP) or stochastic…

Machine Learning · Computer Science 2024-12-06 Daniel Scheliga , Patrick Mäder , Marco Seeland

Federated Learning (FL) has emerged as a promising approach for collaborative model training without sharing private data. However, privacy concerns regarding information exchanged during FL have received significant research attention.…

Machine Learning · Computer Science 2023-06-14 Bowen Li , Hanlin Gu , Ruoxin Chen , Jie Li , Chentao Wu , Na Ruan , Xueming Si , Lixin Fan

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

The gradient inversion attack has been demonstrated as a significant privacy threat to federated learning (FL), particularly in continuous domains such as vision models. In contrast, it is often considered less effective or highly dependent…

Machine Learning · Computer Science 2025-07-30 Xinguo Feng , Zhongkui Ma , Zihan Wang , Eu Joe Chegne , Mengyao Ma , Alsharif Abuadbba , Guangdong Bai

Federated reinforcement learning (FRL) enables distributed learning of optimal policies while preserving local data privacy through gradient sharing.However, FRL faces the risk of data privacy leaks, where attackers exploit shared gradients…

Machine Learning · Computer Science 2025-12-02 Shenghong He

Federated learning (FL) for time series forecasting (TSF) enables clients with privacy-sensitive time series (TS) data to collaboratively learn accurate forecasting models, for example, in energy load prediction. Unfortunately, privacy…

Machine Learning · Computer Science 2025-03-28 Caspar Meijer , Jiyue Huang , Shreshtha Sharma , Elena Lazovik , Lydia Y. Chen

This paper presents a holistic approach to gradient leakage resilient distributed Stochastic Gradient Descent (SGD). First, we analyze two types of strategies for privacy-enhanced federated learning: (i) gradient pruning with random…

Machine Learning · Computer Science 2023-05-12 Wenqi Wei , Ling Liu , Jingya Zhou , Ka-Ho Chow , Yanzhao Wu
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