A method and system for controlling access to a plurality of secure computer networks using a secure registry system is disclosed. The secure registry system includes a database containing selected data of a plurality of users each authorized to access at least one of the plurality of secure computer networks. The method and system facilitate receiving authentication information from an entity at a secure computer network, communicating the authentication information to the secure registry system, validating the authentication information at the secure registry system, receiving from the secure registry system an indication of whether the entity is authorized to access the secure computer network, and granting the entity access to the secure computer network when the authentication information of the entity corresponds to one of the plurality of users.