Owl DiOTa vs Waterfall Security Solutions: Side-by-Side Comparison (2026)

Owl DiOTa

Mid-market and enterprise OT teams managing critical infrastructure will get the most from Owl DiOTa because hardware-based data diodes are the only enforcement mechanism that actually prevents exfiltration, not just monitors it. The compact form factor means you can deploy it at distributed OT boundaries without ripping out existing networks, and minimal maintenance keeps your already-stretched OT staff from babysitting another appliance. Not the right fit if you need east-west microsegmentation across a sprawling OT fabric or if your governance team demands software-based solutions that play nicely with existing IT security stacks.

Waterfall Security Solutions

Enterprise and mid-market teams running critical OT/ICS infrastructure will get the most from Waterfall Security Solutions because hardware-enforced unidirectional gateways actually stop lateral movement that software firewalls can't, turning network segmentation from a policy exercise into a physics problem. The tamper-proof Waterfall Blackbox forensic repository and centralized monitoring address the RS.MI and DE.CM gaps that plague most OT deployments, giving you provable incident containment when breaches happen. Skip this if you need bi-directional data flow between OT and IT networks or if your OT environment runs commodity IT protocols; Waterfall's strength is enforcing one-way trust boundaries, which means some legitimate use cases require workarounds like the WF-Secure Bypass emergency access mode.