1. A method for custom authentication, the method comprising: storing information in memory regarding a plurality of custom-authenticated user groups, wherein each custom-authenticated user group has a dossier, wherein membership of each custom-authenticated user group is determined based on a user dossier and the dossier of the custom-authenticated user group, and wherein the user dossier and the dossier of the custom-authenticated user group are a list of attribute-value pairs; receiving an access request sent over a communication network from a user of a client device, wherein the access request includes authentication information from the user dossier, and wherein the access request is a SQL (structured query language) query; identifying that the access request is associated with a custom-authenticated user group; evaluating the access request with the dossier of the requested customer-authenticated user group; determining that the authentication information in the access request does not meet the requirements of the dossier associated with the requested customer-authenticated user group, wherein the requirements of the dossier associated with the requested custom-authenticated user group includes additional information not provided by the user in the access request; generating a query to one or more databases to obtain additional information to complete the dossier for the user, wherein the completed dossier for the user satisfies the requirements associated with the dossier of the requested customer-authenticated user group; and assigning an access status for the user based on the completed dossier for the user.