Systems and methods for delivery of user profile data are disclosed. An exemplary method includes detecting a request for a full copy of a user profile data package maintained by a user profile data source subsystem, creating an illusion that the request has been fulfilled, and copying on demand a portion of the user profile data package from the source subsystem to a target location for access by a data consuming subsystem. In certain embodiments, the method further includes utilizing the copied portion of the user profile data package for execution of a computing operation, without fully copying the user profile data package from the source subsystem. In certain embodiments, the portion of the user profile data package is streamed from the source subsystem to the target location over a network connection.