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Adaptive Risk Network Dependency Analysis Of Complex Hierarchical Systems, Katherine L. Smith
Adaptive Risk Network Dependency Analysis Of Complex Hierarchical Systems, Katherine L. Smith
Computational Modeling & Simulation Engineering Theses & Dissertations
Recently the number, variety, and complexity of interconnected systems have been increasing while the resources available to increase resilience of those systems have been decreasing. Therefore, it has become increasingly important to quantify the effects of risks and the resulting disruptions over time as they ripple through networks of systems. This dissertation presents a novel modeling and simulation methodology which quantifies resilience, as impact on performance over time, and risk, as the impact of probabilistic disruptions. This work includes four major contributions over the state-of-the-art which are: (1) cyclic dependencies are captured by separation of performance variables into layers which …
Cyber Deception For Critical Infrastructure Resiliency, Md Ali Reza Al Amin
Cyber Deception For Critical Infrastructure Resiliency, Md Ali Reza Al Amin
Computational Modeling & Simulation Engineering Theses & Dissertations
The high connectivity of modern cyber networks and devices has brought many improvements to the functionality and efficiency of networked systems. Unfortunately, these benefits have come with many new entry points for attackers, making systems much more vulnerable to intrusions. Thus, it is critically important to protect cyber infrastructure against cyber attacks. The static nature of cyber infrastructure leads to adversaries performing reconnaissance activities and identifying potential threats. Threats related to software vulnerabilities can be mitigated upon discovering a vulnerability and-, developing and releasing a patch to remove the vulnerability. Unfortunately, the period between discovering a vulnerability and applying a …