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Waterfall Security Solutions

Network Security

Israeli OT security company whose unidirectional gateways physically prevent attacks from reaching industrial control networks.

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65/100Incremental Innovator

Overview

Waterfall Security Solutions, based in Rosh Haayin, Israel, builds hardware-enforced unidirectional gateways that replace one layer of firewalls in industrial networks. Data flows out of the protected OT network but no traffic can physically flow back in.

Its customer base reportedly includes power plants, nuclear and oil-and-gas facilities, refineries and utilities. In January 2023 it announced a collaboration with Yokogawa to offer the gateways to Yokogawa customers worldwide.

Innovation Matrix Assessment

Innovation Velocity 5/10

Core technology is mature; gains come from integrations and applications rather than rapid novelty.

Operational Value 8/10

Eliminating inbound attack paths into OT cuts risk for safety-critical sites.

Market Momentum 6/10

Reseller/partner deals such as Yokogawa; no public funding data found.

Category Disruption 6/10

Physical one-way enforcement is a distinct alternative to firewalls.

Real-World Efficacy 7/10

Hardware enforcement is robust by design, though public independent test data is limited.

Enduring Relevance 7/10

Critical-infrastructure risk and regulation keep this relevant.

Why CISOs Should Care

For safety-critical OT environments, hardware-enforced one-way flow removes whole classes of remote attack.

What Makes It Different

Uses physical unidirectional hardware rather than software rules that can be misconfigured or bypassed.

The Matrix Verdict

65/100 — INCREMENTAL INNOVATOR

Waterfall is an Incremental Innovator near the Meaningful boundary: a distinctive, durable approach for OT, with limited transparent adoption and funding data.

Editorial Note: Claims vs. Verified Findings

Founding year (2006/2007) and headcount conflict across aggregators; security-by-design claims are vendor-stated.

Sources

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