- Business Operations
- Components
- Connectivity
- Critical Infrastructure
- Cybersecurity
- Data Diode
- Data Replication
- Defense in Depth
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- Endpoint Protection Platform
- Enterprise
- gateway
- Industrial Control Systems
- Mergers and Acquisitions
- Monitoring
- Network Segmentation
- Operational technology
- Optical Networking
- Physical Layer
- Power
- Professional Services
- Protection
- Services
- Simple Network Management Protocol
- Software
- Supervisory Control and Data Acquisition
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Who is Waterfall Security Solutions?
Waterfall Security Solutions is a cybersecurity vendor focused on unidirectional gateway hardware and software for protecting industrial control systems and Operational technology (OT) networks.
- Unidirectional gateway products for IT/OT network segmentation and secure data replication (industrial cybersecurity)
- Data diodes and related hardware enforcing one-way traffic from OT to IT environments (network security)
- Integration of industrial protocols and systems for mirrored historian, Supervisory Control and Data Acquisition (SCADA), and monitoring use cases (industrial connectivity)
- Security architectures and deployment models for critical infrastructure sectors such as energy, manufacturing, and transportation (OT security architecture)
- Advisory, deployment, and lifecycle support services for industrial and critical infrastructure customers (professional services)
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More About Waterfall Security Solutions
Waterfall Security Solutions focuses on cyber protection for industrial control system (ICS) and OT environments, especially where availability and safety requirements constrain the use of conventional IT security controls. Its core offering is a portfolio of unidirectional gateway products (network security), also commonly referred to as data diodes, which enforce one-way data flows from protected OT networks to external or corporate IT networks.
In typical enterprise and critical infrastructure deployments, Waterfall gateways are installed at the boundary between control networks and business networks. The hardware layer uses a transmit-only optical or electrical link in one direction and a receive-only link in the opposite direction, blocking any inbound traffic into the protected OT segment. On top of this physical layer, Waterfall provides software components that replicate servers, databases, and data streams so that IT users and applications can access mirrored copies of OT data without maintaining direct logical connectivity to the control network.
The company’s technology is used in sectors such as electric power, oil and gas, water and wastewater, rail, manufacturing, and other process industries where operators must comply with safety and regulatory requirements for ICS and SCADA systems. Waterfall’s unidirectional architectures (OT security architecture) are positioned as an alternative to or complement for firewalls in environments where inbound connectivity from external networks is restricted by policy or regulation. The replicated data can feed enterprise historians, Security Information and Event Management (SIEM) platforms, analytics tools, and monitoring systems on the IT side while the original OT assets remain isolated.
Waterfall supports a range of industrial and enterprise protocols and applications (industrial connectivity), such as historian databases, OPC and other industrial middleware, syslog and Simple Network Management Protocol (SNMP) for monitoring, and common enterprise interfaces. These protocol-specific software connectors run on the unidirectional gateway infrastructure to mirror servers or forward selected data. In many deployments, the solution coexists with defense-in-depth controls such as network segmentation, firewalls, and endpoint protection, forming part of a broader OT security reference architecture.
Beyond product hardware and software, Waterfall provides professional services (professional services) including architecture design, deployment planning, and support tailored to ICS and OT environments. This includes integration with existing control systems, verification of data flows required for business operations, and ongoing maintenance of gateway configurations. In an enterprise directory or marketplace taxonomy, Waterfall Security Solutions aligns primarily with categories such as industrial cybersecurity, OT/ICS security, network segmentation, and data diode or unidirectional gateway technologies.
Our description of Waterfall Security Solutions. Updated December 2025.
