Sensor networks are expected to play an important role in hybrid protection infrastructures when combined with robots and human decision makers. In order to be effective, detection of intruders needs to be attended to, and a timely response needs to be made. Intruders, on the other hand, if they can't avoid detection may make use of strategies to overload attention or dilute the response. Such strategies are related to Denial of Service attacks in electronic security. This paper develops the conceptual framework for modeling the game between intruders and defenders.