The WF-500 Waterfall Unidirectional Security Gateway offers unbreachable industrial protection, enables safe IT/OT integration, secure remote access, and unlimited industrial network monitoring.

Replacing just one layer of firewalls with Unidirectional Gateways in an industrial network environment provides OT networks with an unbreachable level of protection, even against the most sophisticated modern cyber attacks.

How it works

The software replicates servers, while the hardware provides an impassable physical barrier to attacks

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An OT network safely to a less secure IT network

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The OT network with hardware-enforced technology

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OT data in real-time to external networks


Safe IT/OT integration

Seamless IT/OT network integration. Combining the benefits of impenetrable hardware with software- based connectivity.

Defeats online cyber attacks

Reduce down-time, equipment damage, environmental & public safety incidents and ensure operational continuity by preventing cyber attacks

Seamless integration

Without the need to install software on industrial networks making OT networks transparent to enterprise users and applications

Extensive cots solutions

An extensive library of software connectors for industrial systems and devices

Unlimited connectivity

Enable safe vendor monitoring, secure remote access and real-time enterprise-wide visibility into operations

Unbreachable physical barrier

Protects absolutely from online cyber attacks from IT networks or the Internet



Hardware is modular, flexible, and user-serviceable


1 Gbps standard throughput


Optional High-Availability configuration


Front panel cabinet connections for clear system visibility

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Compatible with Waterfall’s large library of off-the-shelf connectors


Flexible connector hosting supporting all major operating systems

Technical specifications


43.5(W), 76(D), 4.36(H) cm 1U standard rackmount


110-240vac, 50-60 Hz


8 kg

Network Interfaces

12 x 1Gbps

Certification & Compliance


Common Criteria EAL4+, Singapore NITES, Korean KC, Israel NIS


Idaho National Labs, Digital Bond Labs

Enables compliance with

Global ICS Standards & Regulations, NERC CIP, IEC 62443, NRC 5.71, NIST 800-82R2, CFATS, ISO, Industrial Internet Consortium SF, ANSSI ICS Standards, and many more

Product Information

One way for data.
Zero entry for attackers.