1. In a combination including an identity manager and a user agent system, the combination for use in an environment including at least one security policy having requirements and at least one privacy policy, the identity manager configured to manage a plurality of user identities and to determine whether any user identity satisfies the security policy requirements, the user agent system comprising: storage including at least one privacy preference relative to at least one user identity; an editor means, responsive to user selections indicating at least one preference-related input relating to at least one user identity, for generating at least one privacy preference using the user selections; means for supplying the at least one generated privacy preference to the storage for storage therein; and an engine means, operatively connected to the storage, for evaluating at least one privacy preference against a privacy policy obtained from the environment.