Abstract: A unified login and authentication method and system for logging into one or more of a plurality of hosts over a global computer network. The system uses a triangular arrangement, wherein the three vertices comprise an affiliate service provider that performs partial authentication, a central hub for providing partial authentication of a client, which is the third vertex. The hub processes login credentials, creates a token to establish a session, and encrypts the credentials into separate messages. The affiliate receives the messages from separate channels, decrypts them, and compares the credentials from one message to another. If the credentials match, access is granted to the affiliate resources. Secure Internet protocol is used for communications between each of the three primary computer nodes. The hub and each affiliate use digital certificate technology to communicate between the backend of each node. The hub does not respond to requests received at its backend.