Opswat MetaDefender Industrial Firewall

MetaDefender Industrial Firewall is a ruggedized OT firewall that provides segmentation, access control and intrusion prevention on operational technology networks by understanding industrial protocols. It can inspect commands in Modbus and similar control protocols, allowing only permitted devices, directions and operations through, and so protecting critical control systems from unauthorized or mistaken actions.

Protocol awareness means you can control which industrial command may be executed, going beyond classic IP and port rules. Separating critical PLCs and control devices into small security zones limits the spread of an incident along the production line. The organization adds compensating controls for legacy or unpatchable OT assets, reducing the risk of misconfiguration, unauthorized change and network-based attack while preserving operational continuity.