Visible to the public Measurement and Analysis of Cyber Resilience for Control Systems: An Illustrative Example

TitleMeasurement and Analysis of Cyber Resilience for Control Systems: An Illustrative Example
Publication TypeConference Paper
Year of Publication2018
AuthorsJacobs, Nicholas, Hossain-McKenzie, Shamina, Vugrin, Eric
Conference Name2018 Resilience Week (RWS)
Date PublishedAug. 2018
ISBN Number978-1-5386-6913-6
Keywordscontrol system environment, control system operation, control system security, control systems, CPS Resilience, critical infrastructure, critical infrastructures, cyber attack, Cyber Attacks, cyber physical systems, cyber resilience, cyber security, cyber threats, Cyber-physical systems, cyberattack, digital information, digital systems, frequency control, Frequency measurement, load frequency control, pubcrawl, resilience, Resiliency

Control systems for critical infrastructure are becoming increasingly interconnected while cyber threats against critical infrastructure are becoming more sophisticated and difficult to defend against. Historically, cyber security has emphasized building defenses to prevent loss of confidentiality, integrity, and availability in digital information and systems, but in recent years cyber attacks have demonstrated that no system is impenetrable and that control system operation may be detrimentally impacted. Cyber resilience has emerged as a complementary priority that seeks to ensure that digital systems can maintain essential performance levels, even while capabilities are degraded by a cyber attack. This paper examines how cyber security and cyber resilience may be measured and quantified in a control system environment. Load Frequency Control is used as an illustrative example to demonstrate how cyber attacks may be represented within mathematical models of control systems, to demonstrate how these events may be quantitatively measured in terms of cyber security or cyber resilience, and the differences and similarities between the two mindsets. These results demonstrate how various metrics are applied, the extent of their usability, and how it is important to analyze cyber-physical systems in a comprehensive manner that accounts for all the various parts of the system.

Citation Keyjacobs_measurement_2018