MetaDefender NetWall by OPSWAT is a suite of hardware-enforced security gateways and data diodes designed to protect critical IT and Operational Technology (OT) environments. The system facilitates secure data transfer between networks of differing security classifications by creating a true protocol break and a non-routable connection. It utilizes a segmented architecture with dedicated sides to manage and secure data transfers across network boundaries, isolating OT and Industrial Control Systems (ICS) from network-borne threats during data movement.
The platform offers models that accommodate various industrial data flows, enabling strict one-way (unidirectional) or secure bilateral data transfers without relying on traditional routing configurations. It supports the real-time replication of SQL databases and industrial historians, along with multiple industrial and IT protocols. Depending on the configuration, capabilities include on-diode protocol conversion, payload delivery assurance, and file sanitization to maintain data integrity and prevent malicious communications from traversing network segments.