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  • Article
  • Open Access
154 Citations
24,206 Views
15 Pages

Privacy and Security in Federated Learning: A Survey

  • Rémi Gosselin,
  • Loïc Vieu,
  • Faiza Loukil and
  • Alexandre Benoit

1 October 2022

In recent years, privacy concerns have become a serious issue for companies wishing to protect economic models and comply with end-user expectations. In the same vein, some countries now impose, by law, constraints on data use and protection. Such co...

(This article belongs to the Special Issue Federated and Transfer Learning Applications)
  • Review
  • Open Access
26 Citations
7,989 Views
35 Pages

A Review of Federated Meta-Learning and Its Application in Cyberspace Security

  • Fengchun Liu,
  • Meng Li,
  • Xiaoxiao Liu,
  • Tao Xue,
  • Jing Ren and
  • Chunying Zhang

In recent years, significant progress has been made in the application of federated learning (FL) in various aspects of cyberspace security, such as intrusion detection, privacy protection, and anomaly detection. However, the robustness of federated...

(This article belongs to the Special Issue Intelligent Analysis and Security Calculation of Multisource Data)
  • Article
  • Open Access
621 Views
24 Pages

15 January 2026

Security requirements play a critical role in ensuring the trustworthiness and resilience of software systems; however, their automatic classification remains challenging due to limited labeled data, confidentiality constraints, and the heterogeneous...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
45 Citations
6,928 Views
15 Pages

15 December 2020

With the advent of smart devices, smartphones, and smart everything, the Internet of Things (IoT) has emerged with an incredible impact on the industries and human life. The IoT consists of millions of clients that exchange massive amounts of critica...

(This article belongs to the Collection Security, Trust and Privacy in New Computing Environments)
  • Article
  • Open Access
62 Citations
16,976 Views
37 Pages

A Survey of Security Strategies in Federated Learning: Defending Models, Data, and Privacy

  • Habib Ullah Manzoor,
  • Attia Shabbir,
  • Ao Chen,
  • David Flynn and
  • Ahmed Zoha

15 October 2024

Federated Learning (FL) has emerged as a transformative paradigm in machine learning, enabling decentralized model training across multiple devices while preserving data privacy. However, the decentralized nature of FL introduces significant security...

(This article belongs to the Special Issue Privacy and Security Issues in IoT Systems)
  • Article
  • Open Access
6 Citations
2,186 Views
18 Pages

13 December 2024

The integration of blockchain and federated learning (FL) has emerged as a promising solution to address data privacy and security challenges in Intelligent Unmanned Ports (IUPs). However, existing blockchain federated learning (BFL) frameworks encou...

(This article belongs to the Special Issue Empowering IoT with AI: AIoT for Smart and Autonomous Systems)
  • Systematic Review
  • Open Access
143 Citations
20,349 Views
60 Pages

The ongoing evolution of cloud computing requires sustained attention to security, privacy, and compliance issues. The purpose of this paper is to systematically review the current literature regarding the application of federated learning (FL) and a...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
28 Citations
7,260 Views
31 Pages

The increasing adoption of smart home devices has raised significant concerns regarding privacy, security, and vulnerability to cyber threats. This study addresses these challenges by presenting a federated learning framework enhanced with blockchain...

(This article belongs to the Special Issue Big Data and AI Services for Sustainable Smart Cities)
  • Article
  • Open Access
3 Citations
1,925 Views
38 Pages

Federated Learning and EEL-Levy Optimization in CPS ShieldNet Fusion: A New Paradigm for Cyber–Physical Security

  • Nalini Manogaran,
  • Yamini Bhavani Shankar,
  • Malarvizhi Nandagopal,
  • Hui-Kai Su,
  • Wen-Kai Kuo,
  • Sanmugasundaram Ravichandran and
  • Koteeswaran Seerangan

9 June 2025

As cyber–physical systems are applied not only to crucial infrastructure but also to day-to-day technologies, from industrial control systems through to smart grids and medical devices, they have become very significant. Cyber–physical sy...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
46 Citations
5,682 Views
21 Pages

Privacy and data security have become the new hot topic for regulators in recent years. As a result, Federated Learning (FL) (also called collaborative learning) has emerged as a new training paradigm that allows multiple, geographically distributed...

(This article belongs to the Section Networks)
  • Article
  • Open Access
2 Citations
773 Views
25 Pages

4 June 2026

The rapid proliferation of Narrowband Internet of Things (NB-IoT) devices necessitates robust, privacy-preserving intrusion detection systems. While Federated Learning (FL) mitigates data privacy risks through localized training, it introduces vulner...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
22 Citations
9,181 Views
36 Pages

18 March 2025

Federated learning (FL) is a machine learning technique where clients exchange only local model updates with a central server that combines them to create a global model after local training. While FL offers privacy benefits through local training, p...

(This article belongs to the Special Issue Digital Privacy and Security, 2nd Edition)
  • Article
  • Open Access
74 Citations
9,773 Views
48 Pages

1 February 2024

Federated learning (FL) is a machine learning (ML) technique that enables collaborative model training without sharing raw data, making it ideal for Internet of Things (IoT) applications where data are distributed across devices and privacy is a conc...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
10 Citations
1,871 Views
32 Pages

19 December 2025

The integration of artificial intelligence into remote patient monitoring (RPM) offers significant benefits for proactive and continuous healthcare, but also raises critical concerns regarding privacy, integrity, and robustness. Federated Learning (F...

(This article belongs to the Special Issue Applications in Neural and Symbolic Artificial Intelligence)
  • Review
  • Open Access
21 Citations
11,488 Views
39 Pages

Federated learning (FL) is an advanced distributed machine learning method that effectively solves the data silo problem. With the increasing popularity of federated learning and the growing importance of privacy protection, federated learning method...

  • Article
  • Open Access
1 Citations
931 Views
34 Pages

8 June 2026

The increasing pace of Internet of Things (IoT) and Industrial Internet of Things (IIoT) applications has exacerbated the security challenges in resource-constrained environments, where traditional cryptographic protocols incur prohibitively high com...

(This article belongs to the Special Issue Secure IoT: Cryptographic Solutions for Sensor Networks)
  • Article
  • Open Access
43 Citations
5,076 Views
17 Pages

Efficient and Secure Federated Learning for Financial Applications

  • Tao Liu,
  • Zhi Wang,
  • Hui He,
  • Wei Shi,
  • Liangliang Lin,
  • Ran An and
  • Chenhao Li

10 May 2023

Conventional machine learning (ML) and deep learning approaches require sharing customers’ sensitive information with an external credit bureau to generate a prediction model, thereby increasing the risk of privacy leakage. This poses a signifi...

(This article belongs to the Special Issue Mobile Computing and Intelligent Sensing)
  • Article
  • Open Access
11 Citations
5,326 Views
34 Pages

Securing Federated Learning: Approaches, Mechanisms and Opportunities

  • Mohammad Moshawrab,
  • Mehdi Adda,
  • Abdenour Bouzouane,
  • Hussein Ibrahim and
  • Ali Raad

16 September 2024

With the ability to analyze data, artificial intelligence technology and its offshoots have made difficult tasks easier. The tools of these technologies are now used in almost every aspect of life. For example, Machine Learning (ML), an offshoot of a...

(This article belongs to the Section Networks)
  • Article
  • Open Access
11 Citations
5,287 Views
23 Pages

Cluster-Based Secure Aggregation for Federated Learning

  • Jien Kim,
  • Gunryeong Park,
  • Miseung Kim and
  • Soyoung Park

In order to protect each node’s local learning parameters from model inversion attacks, secure aggregation has become the essential technique for federated learning so that the federated learning server knows only the combined result of all loc...

(This article belongs to the Special Issue Advanced Machine Learning Applications for Security, Privacy, and Reliability)
  • Article
  • Open Access
658 Views
28 Pages

Secure Federated Learning Algorithms for Vertical and Combined Data Partitioning

  • Amir Anees,
  • Ding Ming,
  • Gnana Bharathy and
  • Lois Holloway

With the growing need for collaborative machine learning across institutions holding sensitive data, ensuring data privacy without compromising model performance has become an important challenge. This work introduces secure federated learning algori...

(This article belongs to the Special Issue Federated Neural Networks: Design and Deployment)
  • Systematic Review
  • Open Access
1 Citations
948 Views
26 Pages

The quick transition of the healthcare industry to digital during the era of the Internet of Medical Things and Artificial Intelligence has ignited the demand for frameworks for data sharing while retaining safety and patient privacy. Centralized lea...

(This article belongs to the Special Issue Advanced AI and Data-Driven Learning Methods for Healthcare Applications)
  • Article
  • Open Access
1 Citations
743 Views
21 Pages

9 April 2026

The widespread adoption of large-scale sensor networks in privacy-sensitive and safety-critical applications has intensified the demand for secure, trustworthy, and energy-efficient learning mechanisms at the network edge. Federated learning has emer...

(This article belongs to the Special Issue Sensor Security and Beyond)
  • Article
  • Open Access
58 Citations
5,599 Views
22 Pages

Secure Smart Communication Efficiency in Federated Learning: Achievements and Challenges

  • Seyedamin Pouriyeh,
  • Osama Shahid,
  • Reza M. Parizi,
  • Quan Z. Sheng,
  • Gautam Srivastava,
  • Liang Zhao and
  • Mohammad Nasajpour

7 September 2022

Federated learning (FL) is known to perform machine learning tasks in a distributed manner. Over the years, this has become an emerging technology, especially with various data protection and privacy policies being imposed. FL allows for performing m...

(This article belongs to the Special Issue Artificial Intelligence in Internet of Things: Challenges and Opportunities)
  • Review
  • Open Access
32 Citations
6,356 Views
30 Pages

30 June 2025

In recent years, cutting-edge technologies, such as artificial intelligence (AI), blockchain, and digital twin (DT), have revolutionized the healthcare sector by enhancing public health and treatment quality through precise diagnosis, preventive meas...

(This article belongs to the Section Algorithms and Mathematical Models for Computer-Assisted Diagnostic Systems)
  • Article
  • Open Access
43 Citations
4,361 Views
15 Pages

Blockchain Empowered Federated Learning Ecosystem for Securing Consumer IoT Features Analysis

  • Abdullah Alghamdi,
  • Jiang Zhu,
  • Guocai Yin,
  • Mohammad Shorfuzzaman,
  • Nawal Alsufyani,
  • Sultan Alyami and
  • Sujit Biswas

8 September 2022

Resource constraint Consumer Internet of Things (CIoT) is controlled through gateway devices (e.g., smartphones, computers, etc.) that are connected to Mobile Edge Computing (MEC) servers or cloud regulated by a third party. Recently Machine Learning...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
11 Citations
3,139 Views
24 Pages

An End-Process Blockchain-Based Secure Aggregation Mechanism Using Federated Machine Learning

  • Washington Enyinna Mbonu,
  • Carsten Maple and
  • Gregory Epiphaniou

5 November 2023

Federated Learning (FL) is a distributed Deep Learning (DL) technique that creates a global model through the local training of multiple edge devices. It uses a central server for model communication and the aggregation of post-trained models. The ce...

(This article belongs to the Special Issue Security, Privacy, Confidentiality and Trust in Blockchain)
  • Article
  • Open Access
12 Citations
5,473 Views
22 Pages

Secure aggregation of local learning model parameters is crucial for achieving privacy-preserving federated learning. This paper presents a novel and practical aggregation method that effectively combines the advantages of masking-based aggregation w...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
885 Views
29 Pages

16 January 2026

Hierarchical asynchronous federated learning (HAFL) accommodates more real networking and ensures practical communications and efficient aggregations. However, existing HAFL schemes still face challenges in balancing privacy-preserving and robustness...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
1 Citations
1,554 Views
21 Pages

11 February 2026

The integration of Federated Learning (FL) and Graph Neural Networks (GNNs) has emerged as a promising paradigm for distributed intelligence in Internet of Things (IoT) environments. However, challenges related to trust, device heterogeneity, and ene...

(This article belongs to the Special Issue Intelligent Edge: When AI Meets Edge Computing)
  • Article
  • Open Access
9 Citations
4,260 Views
33 Pages

6 September 2024

Privacy must be preserved when working with client data in machine learning. Federated learning (FL) provides a way to preserve user data privacy by aggregating locally trained models without sharing the user data. Still, the privacy of user identity...

(This article belongs to the Special Issue Information Security and Privacy Protection in Networks and Communication)
  • Article
  • Open Access
585 Views
21 Pages

8 July 2026

Chemical artificial intelligence increasingly relies on molecular property prediction models trained from proprietary compound libraries, bioassay records, and reaction-screening data. However, these data often contain commercially sensitive structur...

(This article belongs to the Special Issue Computational Methods for Drug Discovery and Biological Big Data Analysis)
  • Article
  • Open Access
2 Citations
1,618 Views
36 Pages

10 November 2025

The integration of federated learning into Industrial Internet of Things (IIoT) networks enables collaborative intelligence but also exposes systems to identity spoofing, model poisoning, and malicious update injection. This paper presents Leash-FL,...

(This article belongs to the Special Issue Advances and Challenges in Sensor Security Systems)
  • Article
  • Open Access
4 Citations
3,473 Views
18 Pages

17 February 2024

In the era of big data, millions and millions of data are generated every second by different types of devices. Training machine-learning models with these data has become increasingly common. However, the data used for training are often sensitive a...

(This article belongs to the Special Issue Federated and Distributed Learning in IoT)
  • Article
  • Open Access
2 Citations
2,003 Views
28 Pages

19 September 2024

Maintaining user privacy in machine learning is a critical concern due to the implications of data collection. Federated learning (FL) has emerged as a promising solution by sharing trained models rather than user data. However, FL still faces severa...

(This article belongs to the Special Issue Big Data and Blockchain Technologies: Explorations, Solutions and Applications)
  • Article
  • Open Access
940 Views
21 Pages

25 May 2026

Healthcare analytics is often limited by data silos and strict privacy requirements, which make it difficult to share patient-level records across organisations and to build robust predictive models. Federated learning (FL) provides an alternative by...

(This article belongs to the Special Issue Artificial Intelligence in Modern Cybersecurity: Changes, Applications and Challenges)
  • Article
  • Open Access
10 Citations
3,254 Views
24 Pages

The rapid integration of large-scale AI models into distributed systems, such as the Artificial Intelligence of Things (AIoT), has introduced critical security and privacy challenges. While configurable models enhance resource efficiency, their deplo...

(This article belongs to the Special Issue Security and Privacy for AI)
  • Article
  • Open Access
8 Citations
2,165 Views
37 Pages

Federated Reinforcement Learning with Hybrid Optimization for Secure and Reliable Data Transmission in Wireless Sensor Networks (WSNs)

  • Seyed Salar Sefati,
  • Seyedeh Tina Sefati,
  • Saqib Nazir,
  • Roya Zareh Farkhady and
  • Serban Georgica Obreja

6 October 2025

Wireless Sensor Networks (WSNs) consist of numerous battery-powered sensor nodes that operate with limited energy, computation, and communication capabilities. Designing routing strategies that are both energy-efficient and attack-resilient is essent...

  • Article
  • Open Access
23 Citations
4,338 Views
24 Pages

The development of big data analytics in healthcare has created a demand for privacy-conscious and scalable machine learning algorithms that can allow the use of patient information across different healthcare organizations. In this study, the diffic...

(This article belongs to the Section Techno-Social Smart Systems)
  • Article
  • Open Access
10 Citations
1,511 Views
20 Pages

TAFL-UWSN: A Trust-Aware Federated Learning Framework for Securing Underwater Sensor Networks

  • Raja Waseem Anwar,
  • Mohammad Abrar,
  • Abdu Salam and
  • Faizan Ullah

19 March 2026

Underwater Acoustic Sensor Networks (UASNs) are pivotal for environmental monitoring, surveillance, and marine data collection. However, their open and largely unattended operational settings, constrained communication capabilities, limited energy re...

  • Article
  • Open Access
6 Citations
3,768 Views
24 Pages

SecFedDNN: A Secure Federated Deep Learning Framework for Edge–Cloud Environments

  • Roba H. Alamir,
  • Ayman Noor,
  • Hanan Almukhalfi,
  • Reham Almukhlifi and
  • Talal H. Noor

12 June 2025

Cyber threats that target Internet of Things (IoT) and edge computing environments are growing in scale and complexity, which necessitates the development of security solutions that are both robust and scalable while also protecting privacy. Edge sce...

  • Article
  • Open Access
19 Citations
3,710 Views
20 Pages

27 June 2024

Although federated learning is gaining prevalence in smart sensor networks, substantial risks to data privacy and security persist. An improper application of federated learning techniques can lead to critical privacy breaches. Practical and effectiv...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
1 Citations
1,552 Views
24 Pages

HE/MPC-Based Scheme for Secure Computing LCM/GCD and Its Application to Federated Learning

  • Xin Liu,
  • Xinyuan Guo,
  • Dan Luo,
  • Lanying Liang,
  • Wei Ye,
  • Yuchen Zhang,
  • Baohua Zhang,
  • Yu Gu and
  • Yu Guo

18 July 2025

Federated learning promotes the development of cross-domain intelligent applications under the premise of protecting data privacy, but there are still problems of sensitive parameter information leakage of multi-party data temporal alignment and reso...

(This article belongs to the Special Issue Symmetry and Asymmetry in Cryptography and Cyber Security)
  • Article
  • Open Access
904 Views
35 Pages

We tackle the problem of secure and private feature selection by homomorphically evaluating features’ information gains over the encrypted data of horizontally partitioned private datasets owned by edge IoT (Internet of Things) devices. In the...

(This article belongs to the Special Issue Advanced Cryptographic Techniques for Digital Watermarking, Encryption, and Steganography)
  • Article
  • Open Access
7 Citations
2,135 Views
34 Pages

11 February 2026

The increasing deployment of uncrewed aerial vehicles (UAVs) in cyber-physical and safety-critical missions has amplified the need for intrusion detection systems that are accurate, privacy-preserving, and resilient to adversarial manipulation. In th...

(This article belongs to the Section Artificial Intelligence in Drones (AID))
  • Article
  • Open Access
2 Citations
3,798 Views
43 Pages

Privacy-Preserving Federated Learning for Distributed Financial IoT: A Blockchain-Based Framework for Secure Cryptocurrency Market Analytics

  • Oleksandr Kuznetsov,
  • Saltanat Adilzhanova,
  • Serhiy Florov,
  • Valerii Bushkov and
  • Danylo Peremetchyk

11 December 2025

The proliferation of Internet of Things (IoT) devices in financial markets has created distributed ecosystems where cryptocurrency exchanges, trading platforms, and market data providers operate as autonomous edge nodes generating massive volumes of...

(This article belongs to the Special Issue Blockchain-Based Trusted IoT)
  • Article
  • Open Access
1 Citations
1,133 Views
29 Pages

17 November 2025

In federated learning, secure aggregation is essential to protect the confidentiality of local model updates, ensuring that the server can access only the aggregated result without exposing individual contributions. However, conventional secure aggre...

(This article belongs to the Special Issue Applied Cryptography and Blockchain Security, 2nd Edition)
  • Article
  • Open Access
10 Citations
3,388 Views
25 Pages

Integrated Blockchain and Federated Learning for Robust Security in Internet of Vehicles Networks

  • Zhikai He,
  • Rui Xu,
  • Binyu Wang,
  • Qisong Meng,
  • Qiang Tang,
  • Li Shen,
  • Zhen Tian and
  • Jianyu Duan

21 July 2025

The Internet of Vehicles (IoV) operates in an environment characterized by asymmetric security threats, where centralized vulnerabilities create a critical imbalance that can be disproportionately exploited by attackers. This study addresses this imb...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
4 Citations
2,617 Views
21 Pages

SecMDGM: Federated Learning Security Mechanism Based on Multi−Dimensional Auctions

  • Qian Chen,
  • Lin Yao,
  • Xuan Wang,
  • Zoe Lin Jiang,
  • Yulin Wu and
  • Tianzi Ma

2 December 2022

As a newly emerging distributed machine learning technology, federated learning has unique advantages in the era of big data. We explore how to motivate participants to experience auctions more actively and safely. It is also essential to ensure that...

(This article belongs to the Special Issue Advanced Technologies in Sensor Networks and Internet of Things)
  • Article
  • Open Access
24 Citations
4,576 Views
19 Pages

1 September 2023

Federated learning has emerged as a promising technique for the Internet of Things (IoT) in various domains, including supply chain management. It enables IoT devices to collaboratively learn without exposing their raw data, ensuring data privacy. Ho...

(This article belongs to the Special Issue Hybrid Data Processing by Combining Machine Learning, Expert, Safety and Security)
  • Article
  • Open Access
121 Citations
8,086 Views
27 Pages

Enhancing Brain Tumor Segmentation Accuracy through Scalable Federated Learning with Advanced Data Privacy and Security Measures

  • Faizan Ullah,
  • Muhammad Nadeem,
  • Mohammad Abrar,
  • Farhan Amin,
  • Abdu Salam and
  • Salabat Khan

7 October 2023

Brain tumor segmentation in medical imaging is a critical task for diagnosis and treatment while preserving patient data privacy and security. Traditional centralized approaches often encounter obstacles in data sharing due to privacy regulations and...

(This article belongs to the Section E1: Mathematics and Computer Science)

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