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Article

Exploiting Autoencoder-Based Anomaly Detection to Enhance Cybersecurity in Power Grids

1
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
2
LESM Laboratory, Department of Telecommunications, Faculty of Technology, University of Saida-Dr Moulay Tahar, Saida 20000, Algeria
3
Computer Science Department, University of Science and Technology of Oran-Mohamed Boudiaf (USTO-MB), El Mnaouar, BP 1505, Oran 31000, Algeria
*
Authors to whom correspondence should be addressed.
Future Internet 2024, 16(6), 184; https://0-doi-org.brum.beds.ac.uk/10.3390/fi16060184
Submission received: 3 May 2024 / Revised: 17 May 2024 / Accepted: 20 May 2024 / Published: 22 May 2024
(This article belongs to the Special Issue Cybersecurity in the IoT)

Abstract

The evolution of smart grids has led to technological advances and a demand for more efficient and sustainable energy systems. However, the deployment of communication systems in smart grids has increased the threat of cyberattacks, which can result in power outages and disruptions. This paper presents a semi-supervised hybrid deep learning model that combines a Gated Recurrent Unit (GRU)-based Stacked Autoencoder (AE-GRU) with anomaly detection algorithms, including Isolation Forest, Local Outlier Factor, One-Class SVM, and Elliptical Envelope. Using GRU units in both the encoder and decoder sides of the stacked autoencoder enables the effective capture of temporal patterns and dependencies, facilitating dimensionality reduction, feature extraction, and accurate reconstruction for enhanced anomaly detection in smart grids. The proposed approach utilizes unlabeled data to monitor network traffic and identify suspicious data flow. Specifically, the AE-GRU is performed for data reduction and extracting relevant features, and then the anomaly algorithms are applied to reveal potential cyberattacks. The proposed framework is evaluated using the widely adopted IEC 60870-5-104 traffic dataset. The experimental results demonstrate that the proposed approach outperforms standalone algorithms, with the AE-GRU-based LOF method achieving the highest detection rate. Thus, the proposed approach can potentially enhance the cybersecurity in smart grids by accurately detecting and preventing cyberattacks.
Keywords: cyberattack detection; protocol IEC 104; deep learning; semi-supervised methods; anomaly detection cyberattack detection; protocol IEC 104; deep learning; semi-supervised methods; anomaly detection

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MDPI and ACS Style

Harrou, F.; Bouyeddou, B.; Dairi, A.; Sun, Y. Exploiting Autoencoder-Based Anomaly Detection to Enhance Cybersecurity in Power Grids. Future Internet 2024, 16, 184. https://0-doi-org.brum.beds.ac.uk/10.3390/fi16060184

AMA Style

Harrou F, Bouyeddou B, Dairi A, Sun Y. Exploiting Autoencoder-Based Anomaly Detection to Enhance Cybersecurity in Power Grids. Future Internet. 2024; 16(6):184. https://0-doi-org.brum.beds.ac.uk/10.3390/fi16060184

Chicago/Turabian Style

Harrou, Fouzi, Benamar Bouyeddou, Abdelkader Dairi, and Ying Sun. 2024. "Exploiting Autoencoder-Based Anomaly Detection to Enhance Cybersecurity in Power Grids" Future Internet 16, no. 6: 184. https://0-doi-org.brum.beds.ac.uk/10.3390/fi16060184

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