Abstract: A system and method for detecting trigger events in datastreams received over a computer communication network is disclosed. The system includes an interceptor for intercepting datastreams from a computer network intended for an application program; a scanner for scanning the intercepted datastream for trigger events, such as cookie data, script commands, and applet programs; and an event response generator for processing detected trigger events. Configuration data is used to identify a response for trigger events such as disabling script commands or programs and deleting or modifying cookie data. The event indicators and an action menu are generated by the event response generator and delivered with the processed datastream to the application program. The application program displays the event indicators so the user is made aware of the trigger events and the action menu allows a user to respond to the detected trigger events.