#5911. CPMTD: Cyber-physical moving target defense for hardening the security of power system against false data injected attack

August 2026publication date
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Journal’s subject area:
Computer Science (all);
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Abstract:
Cyber-physical system (CPS) like smart grids deeply integrated with communication networks are often subjected to sophisticated cyber-attacks, such as false data injection attack (FDIA) with a strong capability of strategic reconnaissance required to learn the environment, where the static characteristics of the system enable an easier profiling of the critical infrastructure resources by the adversary. In this paper, we propose a cyber-physical moving target defense (CPMTD) technique that focuses on both attack prevention and detection to mitigate such static vulnerabilities and provide a combination of defense strategies for power system. For attack prevention, we design the Cyber-MTD strategy to mislead and disrupt attack preparation by randomizing the data acquisition with controlled change across multiple system dimensions based on the network programmability of protocol oblivious forwarding (POF). For attack detection, we design the Physical-MTD strategy to improve the detection probability of FDIA by periodically changing the measurement matrix of state estimation based on the D-FACTS devices’ capability of perturbing the transmission line susceptance.
Keywords:
Attack prevetion and detection; Bi-level framework; Cyber-physical system; False data injection attack; Moving target defense

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