1. A system of intrusion detection in a network comprising: a flow processing facility that is configured to detect and process intrusions in network data flowing through the facility, the facility comprising at least one network processor module having at least one processor, a plurality of network ports for connecting network devices for communicating network data, and instructions to cause the at least one processor to recognize one or more data packets in the network data that contain data, including profile information, for processing by an application executing on the flow processing facility by applying a policy to the data, and directing a portion of the network data to at least one flow processor module for executing the application based on the profile information and the policy; the at least one flow processor module having at least one processor and at least one memory for storing the application for execution by the at least one flow processor module processor, the at least one flow processor module including instructions to receive the portion of the network data from the at least one network processor module, to process the data in the one or more data packets for detecting intrusions, thereby providing one or more data packets with processed data, and to return the one or more data packets with processed data to the at least one network processor module for facilitating prevention of a detected intrusion from being propagated to the network; and at least one control processor module in communication with the at least one flow processor module and the at least one network processor module, and having at least one control processor module processor, and instructions for causing the at least one control processor module processor to manage the applications in the flow processor module memories.