Game theory and cyber defense

Abstract

The extensive use of information technology systems in military sector has changed the face of the battlefield and the nature of war. A growing body of literature argues that the game-theoretic reasoning is well-suited to many problems in cyber defense. A game between a defender and an attacker trying to gain access to computers remotely is a typical strategic interaction in this domain. This chapter discusses how game theory can be applied in cyberspace. It offers a comprehensive review of literature on the application of game theory in this area. It proposes and illustrates a new game formulation combining game theory and other techniques. The chapter highlights the recognized challenges associated with the applicability of game theory in the cyber world. It discusses how the game-theoretic formalism can be adapted to obtain sound solutions in a reasonable time.