The 3rd ACM International Conference on High Confidence Networked Systems (HiCoNS) will be held April 15-17, 2014 in Berlin, Germany as part of Cyber Physical Systems Week 2014 (CPSWeek 2014). HiCoNS aims to bring together novel concepts and theories that will help in the development of the science of high confidence networked systems, in particular those considered cyber-physical systems (CPS) and their interactions with human decision makers. The conference will focus on system theoretic approaches to address fundamental challenges to increase the confidence of networked CPS by making them more secure, dependable, and trustworthy. An emphasis will be the control and incentive challenges arising as a result of complex interdependencies between networked systems, in particular those at the intersection of cyber and physical dynamics. In doing so, the conference will advance the development of a principled approach to high-confidence networked CPS.