3. The social network of claim 1 wherein the enrollment logic is further configured to compare a biometric template of the plurality of biometric templates of the first user against a plurality of biometric templates of barred users, and deny enrollment to the first user based on a match between the biometric template of the plurality of biometric templates and one of the plurality of biometric templates of barred users.
1. A social network system comprising: enrollment logic comprising a first microprocessor and configured to enroll a first user in the social network by associating, in a memory, the first user with a user ID, associating, in the memory, a plurality of prompts with the user ID, the plurality of prompts for subsequent presentation to the first user, associating, in the memory, a plurality of biometric templates each with one of the plurality of prompts, receiving an indication of the first user's gender, and verifying the first user's gender during enrollment by analyzing a biometric template from the plurality of biometric templates; authentication logic comprising a second microprocessor and configured to authenticate a claimant as the first user by receiving a claimant target, sending a prompt from the plurality of prompts, receiving a biometric response to the prompt, and determining a match between the biometric response and a biometric template associated with the prompt; and logic configured to authenticate the first user to a second user by sending at least a portion of the biometric response of the first user, or at least a portion of a biometric template of the plurality of biometric templates of the first user, to the second user.