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🔧 Waterfall Security Unidirectional Gateway

Waterfall Security Unidirectional Gateway

The OT Security Company.

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Overview

Waterfall Security Solutions is known for its Unidirectional Security Gateways, a hardware-based alternative to firewalls for protecting industrial networks. The gateway transmits information out of an OT network without allowing any data, not even acknowledgements, to flow back in. This physically prevents remote attacks and malware from penetrating the protected network, ensuring operational integrity. They also offer other products for secure remote access and data sharing.

✨ Key Features

  • Hardware-enforced Unidirectional Data Flow
  • Physical prevention of remote network attacks
  • Secure replication of industrial data to IT networks
  • Support for numerous industrial protocols and applications
  • Compliance with NERC CIP and other standards

🎯 Key Differentiators

  • Hardware-enforced physical security, not just software policy
  • Eliminates the possibility of inbound, network-based attacks
  • Considered the gold standard for high-security industrial environments

Unique Value: Provides physically guaranteed, hardware-enforced protection from remote network attacks, offering a level of certainty that software-based firewalls cannot match.

🎯 Use Cases (4)

Protecting critical infrastructure from external cyber threats Securely transferring OT data to IT/Cloud for analysis Ensuring compliance with high-security regulations Isolating safety-critical systems

✅ Best For

  • Replicating historian data to a corporate network without exposing the OT network
  • Preventing any inbound network traffic to a nuclear power plant's control network
  • Securing safety instrumented systems (SIS)

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Environments requiring bidirectional communication and control from external networks
  • Low-security environments where a traditional firewall is sufficient

🏆 Alternatives

Owl Cyber Defense Forescout (as a firewall alternative) Data Diodes

While firewalls can have vulnerabilities and misconfigurations, a unidirectional gateway offers a simple, physical guarantee that no external network traffic can enter the protected OT network.

💻 Platforms

Hardware appliance

✅ Offline Mode Available

🔌 Integrations

OSIsoft PI Server Various historians SIEM solutions (via syslog) Databases

🛟 Support Options

  • ✓ Email Support
  • ✓ Phone Support
  • ✓ Dedicated Support (Standard tier)

🔒 Compliance & Security

✓ GDPR ✓ ISO 27001 ✓ Common Criteria EAL4+ ✓ NERC CIP-005 ✓ ANSSI

💰 Pricing

Contact for pricing

Free tier: N/A

Visit Waterfall Security Unidirectional Gateway Website →