A Defense-in-depth Cybersecurity for Smart Substations

M. N. Dazahra (National superior School of Electricity and Mechanics)
F. Elmariami (National superior School of Electricity and Mechanics)
A. Belfqih (National superior School of Electricity and Mechanics)
J. Boukherouaa (National superior School of Electricity and Mechanics)

International Journal of Electrical and Computer Engineering
Vol 8, No 6: December 2018

The increase of cyber-attacks on industrial and power systems in the recent years make the cybersecurity of supervisory control and data acquisition and substation automation systemsa high important engineering issue. This paper proposes a defense in depth cybersecurity solution for smart substations in different layers of the substation automation system. In fact, it presents possible vulnerabilities in the substation automation system and propose a multiple layer solution based on best practice in cyber security such as the hardening ofdevices, whitelisting, network configuration, network segmentation, role-based account management and cyber security management and deployement.