An authentication management platform that enables authentication systems from various vendors to be integrated into a single service offering. The disclosed arrangement can support multiple, distinct customers and multiple primary authentication servers on a single platform. The management platform provides access only to users that enter a valid passcode comprising both: (1) a personal identification number (PIN) and (2) the current code generated by a security token card assigned to that user. The authentication management platform may be configured to be controlled and maintained by the subscriber to the system, or may be serviced/maintained by a third party service provider.