Firewall configuration and policies for process network security
Developing a prevention approach to plant control systems requires a new approach to network security between the plant network layer and business / external systems. This document addresses the key network/topology areas for architecting pant and business network systems.
The approach to site network(s) and control system security is based on the following principles:
Â· View security from both management and technical perspectives
Â· Ensure security is addressed from both an IT and control system perspective
Â· Design and develop multiple layers of network, system and application security
Â· Ensure industry, regulatory and international standards are taken into account
Â· Prevention is critical in plant control systems, supported by detection