Abstract: Systems and methods for dynamic control of security systems based on identity are disclosed. In an embodiment, a computer-implemented method for controlling a security system comprises receiving interaction data from one or more external systems associated with predefined stages of a passenger's travel path, the interaction data indicative of interaction by the passenger with said one or more external systems, storing and updating data defining an assurance level of the passenger, wherein the assurance level is increased in response to receiving said interaction data, and wherein the assurance level is decreased in the absence of receiving interaction data within a predefined elapsed time, receiving data identifying a request from a security system, the request including data identifying the passenger, and responsive to said request, generating and outputting a control signal to the security system in dependence on the stored assurance level of the identified passenger.