Toward Secure Smart Grid Systems: Risks, Threats, Challenges, and Future Directions

Jean Paul A. Yaacoub, Hassan N. Noura (), Ola Salman and Khaled Chahine
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Jean Paul A. Yaacoub: Institut FEMTO-ST, CNRS, IUT-NFC, Université Marie et Louis Pasteur, F-90000 Belfort, France
Hassan N. Noura: Institut FEMTO-ST, CNRS, IUT-NFC, Université Marie et Louis Pasteur, F-90000 Belfort, France
Ola Salman: DeepVu, Berkeley, CA 94704, USA
Khaled Chahine: College of Engineering and Technology, American University of the Middle East, Egaila 54200, Kuwait

Future Internet, 2025, vol. 17, issue 7, 1-86

Abstract: The evolution of electrical power systems into smart grids has brought about significant advancements in electricity generation, transmission, and utilization. These cutting-edge grids have shown potential as an effective way to maximize energy efficiency, manage resources effectively, and enhance overall reliability and sustainability. However, with the integration of complex technologies and interconnected systems inherent to smart grids comes a new set of safety and security challenges that must be addressed. First, this paper provides an in-depth review of the key considerations surrounding safety and security in smart grid environments, identifying potential risks, vulnerabilities, and challenges associated with deploying smart grid infrastructure within the context of the Internet of Things (IoT). In response, we explore both cryptographic and non-cryptographic countermeasures, emphasizing the need for adaptive, lightweight, and proactive security mechanisms. As a key contribution, we introduce a layered classification framework that maps smart grid attacks to affected components and defense types, providing a clearer structure for analyzing the impact of threats and responses. In addition, we identify current gaps in the literature, particularly in real-time anomaly detection, interoperability, and post-quantum cryptographic protocols, thus offering forward-looking recommendations to guide future research. Finally, we present the Multi-Layer Threat-Defense Alignment Framework, a unique addition that provides a methodical and strategic approach to cybersecurity planning by aligning smart grid threats and defenses across architectural layers.

Keywords: Internet of Things; smart grid security; cyber–physical systems; cybersecurity; cyber warfare; counter-terrorism (search for similar items in EconPapers)
JEL-codes: O3 (search for similar items in EconPapers)
Date: 2025
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