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Mace, J.C., Morisset, C., Pierce, K., Gamble, C., Maple, C., Fitzgerald, J..  2018.  A multi-modelling based approach to assessing the security of smart buildings. Living in the Internet of Things: Cybersecurity of the IoT – 2018. :1—10.

Smart buildings are controlled by multiple cyber-physical systems that provide critical services such as heating, ventilation, lighting and access control. These building systems are becoming increasingly vulnerable to both cyber and physical attacks. We introduce a multi-model methodology for assessing the security of these systems, which utilises INTO-CPS, a suite of modelling, simulation, and analysis tools for designing cyber-physical systems. Using a fan coil unit case study we show how its security can be systematically assessed when subjected to Man-in-the-Middle attacks on the data connections between system components. We suggest our methodology would enable building managers and security engineers to design attack countermeasures and refine their effectiveness.