Date of Award
Spring 2021
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Engineering Management & Systems Engineering
Program/Concentration
Engineering Management and Systems Engineering
Committee Director
C. Ariel Pinto
Committee Member
Adrian Gheorghe
Committee Member
Mustafa Canan
Committee Member
Saltuk Bugra Karahan
Abstract
The cyber domain is a great business enabler providing many types of enterprises new opportunities such as scaling up services, obtaining customer insights, identifying end-user profiles, sharing data, and expanding to new communities. However, the cyber domain also comes with its own set of risks. Cybersecurity risk assessment helps enterprises explore these new opportunities and, at the same time, proportionately manage the risks by establishing cyber situational awareness and identifying potential consequences. Anomaly detection is a mechanism to enable situational awareness in the cyber domain. However, anomaly detection also requires one of the most extensive sets of data and features for proper implementation. One way to make disparate data more usable is by using relations within datasets to provide more robust representations of interdependencies.
The purpose of this study is to use machine learning classification algorithms augmented by a new feature set extracted with graph theoretical information representing human to human and human to machine interactions in the quantification of cyber risk due to insider threats. Included in this study is impact assessment by analyzing past incidents caused by internal actors and depicted on the risk matrices, together with datasets on organizational roles of the internal actors.
DOI
10.25777/xry8-7b41
ISBN
9798516059070
Recommended Citation
Kucukkaya, Goksel.
"Cybersecurity Risk Assessment Using Graph Theoretical Anomaly Detection and Machine Learning"
(2021). Doctor of Philosophy (PhD), Dissertation, Engineering Management & Systems Engineering, Old Dominion University, DOI: 10.25777/xry8-7b41
https://digitalcommons.odu.edu/emse_etds/183
Included in
Artificial Intelligence and Robotics Commons, Business Administration, Management, and Operations Commons, Information Security Commons, Risk Analysis Commons, Systems Engineering Commons