Topological models of critical infrastructures such as power distribution networks (grids) enable the determination and validation of properties ranging from feasibility to susceptibility to attacks contingent on the placement of adversaries. Future distribution networks will require large numbers of sensors and actuators to be positioned efficiently. While it is possible to employ the same structures for power networks as information and control networks, this excessive constraint can reduce the robustness of power networks to attacks. This chapter extends previous work by incorporating a separate information layer that allows the incorporation of multiple hierarchical layers. The information layer facilitates the discovery of topological structures in which information and control aspects may still be retained, at least partially, in the presence of partial compromise of a power network structure by exploiting the limited redundancy in the information overlay hierarchy. The extended model also expresses the propagation of the effects of adversarial influence.