The Application of Unmanned Aerial Systems In Surface Transportation – Volume II-F:Drone Cyber Security: Assurance Methods and Standards
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2019-12-01
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Edition:Final Report, April 2018- December 2019
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Abstract:Unmanned Aerial Systems (UAS) will inevitably occupy commercial airspace in increasing numbers to provide a range of government and private services. UAS are cyber-physical systems and will therefore be subject to cyberattacks. Hardware, software, communications and data must be protected. To promote cyber risk management, this study examined past research and standards relevant to UAS security. While many of the potential security vulnerabilities have been documented, cyber risk management standards stop short of quantitative methods to characterize, and mitigate risk. We present a stop light chart method for cyber risk assessment adapted from the safety domain. We also propose a quantitative cyber risk management framework that can consider attacks, their likelihood and impact, and alternative deterrent and defensive countermeasures, thereby enabling the comparison of alternative mitigation strategies through a countermeasure allocation problem. The framework supports tradeoff analysis to inform the relative cost and effectiveness of implementing a subset of available countermeasures in order to reduce risk.
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