A method, a system, and computer program product for session based data persistency are described. A request to execute, by an executing computing server, a service of an application during a terminal service session initiated by an initiating computing server is received. Current session data including a session header and session attributes is captured. A difference between the current snapshot of the session data and a past snapshot of the session data, generated by the initiating computing server and stored by a persistence layer, is determined. The session attributes stored by the persistence layer are updated based on the difference between the current snapshot of the session data and the past snapshot of the session data to enable execution of the service of the application without requesting reauthentication.