Unidirectional Security Gateways eBook: Unidirectional Protection for ICS/SCADA Networks

Cybersecurity for Industrial Control Systems 

Industrial digitization is steadily increasing cyber vulnerabilities in industrial control systems (ICS). IT/OT integration and Industry 4.0 require operations networks to connect to external networks. This increased connectivity greatly increases the “attack surface” for industrial networks – and opens the door to cyber criminals.

Unidirectional Security Gateways eBook

Unidirectional technology addresses these issues by providing 100% protection from remote cyber threats. In this eBook, we explain how Unidirectional Security Gateways:

  • Enable seamless and safe IT/OT integration
  • Permit one-way transfer of industrial data
  • Allow safe monitoring of industrial operations
  • Eliminate attack opportunities that always accompany firewalled connections
  • Represent a plug-and-play replacement for firewalls


Unidirectional Gateways contain both hardware and software components. The hardware components include a TX Module, containing a fiber-optic transmitter/ laser, and an RX Module, containing an optical receiver, but no laser. The hardware components – transmitter, fiber optic cable and receiver, (or core data diode technology) – along with the software components – application software connectors – ensure one-way transmission and replication of server information from an industrial control network to an external network, but prevent the propagation of any virus, DOS attack, human error or any cyber attack at all back into the protected network.

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