CyPSA is primarily being developed to serve critical infrastructure in the electric industry, but, CyPSA provides for a way to inventory a physical device, determine the logical location of the device (cyber), and list the ranked operational impact of devices. The tool provides a list of ranked contingencies for internetworked devices. This tool can also provide for prioritization of defensive measures by considering factors such as network attack surface and common device types. The CyPSA engine is free to use with a fully open API so the engine can be used in industries other than the power grid.