Date Added: Jan 2010
Intentional and unintentional cyber threats are an ever-present risk for such critical infrastructures and for businesses that rely on 100 percent uptime of their operational facilities. The need for remote monitoring, control, maintenance, and data access have resulted in many Supervisory Control and Data Acquisition (SCADA) systems and Distributed Control Systems (DCS) to be accessible either directly from the Internet or through corporate networks. This paper proposed a Distributed Control System Network Architecture for Securing SCADA system. It is consists of a layered defense-in-depth approach that will enable administrator to watch their networks at every level.