Abstract: A method, apparatus, and computer-readable media for authorizing users of network portals to access a secure resource hosted by a secure server comprises storing a plurality of user identifiers, each representing a user of an owning portal; storing for each of the user identifiers an access privilege to the secure resource; storing a proxy user identifier representing a guest portal and a guest access privilege to the secure resource for all of the users of the guest portal; receiving from the owning portal a first request for access to the secure resource, the first request comprising a first user identifier representing a user of the owning portal; granting to the user of the owning portal access to the secure resource according to the access privilege stored for the first user identifier; receiving from the guest portal a second request for access to the secure resource, the second request comprising a second user identifier representing a user of the guest portal and a portal identifier representing the g

Abstract: A method, system, and computer program product for corporate portal security are provided, wherein security information corresponding to an external object imported into the corporate portal is automatically mapped from the object's native security system into the corporate portal system. For each external object imported, the corporate portal maps external users and external groups identified by the native security into corresponding portal users and portal groups according to a predefined mapping process, and stores the results in a manner that associates the external object with those portal users and portal groups. A plurality of database tables and maps determines the outcome of the predefined mapping process. Advantageously, when new external users or groups are added, they are detected by a synchronization agent which then automatically updates the database tables and maps.