A computer-implemented method, system and computer program product for protecting data being transferred during a session with an application are presented. In response to receiving a session request that includes an application identifier for an application, a data processing node establishes a session with the application and assigns a session identifier for that session. A session response, which includes the session identifier, to the session request is sent. In response to receiving a first request that includes the session identifier, a first pipe in the session is established. This first pipe enables data related to the first request to be isolated according to an assigned first pipe identifier for the first pipe. A first response to the first request is sent, wherein the first response comprises the session identifier and the first pipe identifier.