Triconex/Tofino OPC firewall
The Triconex/Tofino OPC firewall strengthens industrial safety sys--tems against network accidents and attacks. It combines content-inspection firewall technology from Byres Security and the security hardware development of MTL Instruments with the OPC communications servers of Invensys. The system automatically mitigates risks related to known distributed component object model (DCOM) vulnerabilities. Its dynamic port management and built-in traffic-rate controls prevent basic network problems from spreading throughout a plant.