Abstract

Cybersecurity is a technological focus of individuals, businesses, and governments due to increasing threats, the sophistication of attacks, and the growing number of smart devices. Planning, assessment, and training in cybersecurity operations have also grown to combat these threats, resulting in a boom in cyber defense software and services, workforce development and career opportunities, and research in automated cyber technologies. However, building and maintaining a new workforce and developing innovative cyber-threat solutions are expensive and time-consuming. This thesis introduces a configurable machine-learning environment tailored for training agents that uses different reinforcement learning algorithms within the cybersecurity domain. The environment allows agents to learn simulated cyber-attacks, which act as opposition forces in a realistic, controlled setting that reduces the risk to real computer networks. The thesis also investigates relevant research on machine learning agents for cybersecurity, discusses the simulation architecture, and describes experiments utilizing the Proximal Policy Optimization and Advantage Actor-Critic algorithms. The objective of the thesis is to determine the superior algorithm for automatically identifying exploitable vulnerabilities by evaluating the performance based on accuracy, detected vulnerabilities, and time efficiency.

Notes

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Graduation Date

2023

Semester

Summer

Advisor

Mondesire, Sean

Degree

Master of Science (M.S.)

College

College of Engineering and Computer Science

Department

School of Modeling, Simulation, and Training

Degree Program

Modeling & Simulation

Identifier

CFE0009891; DP0028424

URL

https://purls.library.ucf.edu/go/DP0028424

Language

English

Release Date

February 2025

Length of Campus-only Access

1 year

Access Status

Masters Thesis (Campus-only Access)

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Restricted to the UCF community until February 2025; it will then be open access.

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