Who Refuses to Wash Hands? Privacy Issues in Modern House Installation Networks

Modern buildings are often equipped with universal bus systems. The purpose of these bus systems is to control the functions of houses such as lighting, climate control, and heating. In this paper we present a case study that shows how privacy issues evolve out of an untypical utilization of those control systems. As a controversial example, we show that we are able to tell, who does not perform proper hand washing by sampling data from the control network and applying an old-fashioned Monte-Carlo simulation to the problem.