1. A system for determining the identity of an entity who meets trust requirements of a privilege grantor including: an identity and trust management system including at least one computing device in communication with at least one entity, at least one privilege grantor, and at least one authoritative source, and at least one computing device being configured to: receive, store, and maintain at least one rule from the at least one privilege grantor that must be satisfied for the at least one privilege grantor to establish trust with an entity; establish a database of at least one entity with information claims about the at least one entity; query the at least one authoritative source to determine whether at least a portion of the information claims about the at least one entity are correct and/or valid; receive a response from the at least one authoritative source as to whether or not the portion of information is correct and/or valid; store in the database a result of the query to the at least one authoritative source with or without storing data underlying the result; compare the information stored in the database with the at least one rule to determine if the at least one entity meets the at least one rule; and notify the at least one privilege grantor whether the at least one entity meets the at least one rule based on the comparison, by providing the at least one privilege grantor only the results of the comparison stored in the database for the at least one entity without providing the data underlying the result.