Leslie, David and Sherfield, Chris L. and Smart, Nigel P. (2015) Threshold FlipThem : when the winner does not need to take all. In: Decision and Game Theory for Security : 6th International Conference, GameSec 2015, London, UK, November 4-5, 2015, Proceedings. Lecture Notes in Computer Science . Springer, Cham, pp. 74-92. ISBN 9783319255934
Abstract
We examine a FlipIt game in which there are multiple resources which a monolithic attacker is trying to compromise. This extension to FlipIt was considered in a paper in GameSec 2014, and was there called FlipThem. Our analysis of such a situation is focused on the situation where the attacker’s goal is to compromise a threshold of the resources. We use our game theoretic model to enable a defender to choose the correct configuration of resources (number of resources and the threshold) so as to ensure that it makes no sense for a rational adversary to try to attack the system. This selection is made on the basis of the relative costs of the attacker and the defender.