Positioning, Navigation, and Timing (PNT) services such as Global Positioning System (GPS) or Network Time Protocol (NTP) are a critical part of every organization. The impact of a disruption of such services can range from being subtle errors that accumulate over time to complete failure of critical business functions. Our friends at NIST have assembled the tools that you need to identify and manage the risk to these systems.
“The PNT Profile is a flexible tool that can be used by an organization to help meet mission and business objectives that are dependent upon the use of PNT services. The PNT Profile can also help organizations determine risks based on their assessments of the potential impacts of manipulation or the disruption of PNT services to business and operational objectives” –NIST IR-8323