Information warfare (IW) has developed into a significant threat to the national security of the United States. Our critical infrastructures are linked together by information systems in a way that is unprecedented in time and is increasingly vulnerable to information attack. However, beneath all the technical means of instigating or defending against such an attack lies the individual decision-maker. This study seeks to understand sum of those factors which affect the ability of an individual to make accurate decisions in an information warfare environment. The study used game theory to analyze the behavior of decision-makers within an IW simulation.