Sphyrna Security NGXS Passive Data Diode vs OneLayer Bridge: 2026 Comparison

Sphyrna Security NGXS Passive Data Diode

Enterprise and mid-market OT teams managing critical infrastructure with zero-trust segmentation requirements should pick the NGXS Passive Data Diode for its truly unidirectional optical isolation, which eliminates backhaul attack paths that active devices leave open. The 10Gbps throughput over passive fiber optic transmission means you're not introducing a networked chokepoint that needs patching, and that aligns directly with NIST PR.IR resilience architecture by removing a potential single point of failure. This isn't for buyers seeking software-defined segmentation or cloud-native OT connectivity; you're committing to hardware-based, physics-enforced isolation in fixed network topologies.

OneLayer Bridge

Mid-market and enterprise operators of private 5G networks or cellular IoT deployments need OneLayer Bridge because it enforces Zero Trust segmentation at the cellular core layer, not just the edge, where most network segmentation tools stop. The platform covers the full asset lifecycle from device fingerprinting through persistent tracking and policy enforcement via PCF/PCRF integration, addressing NIST ID.AM and PR.AA gaps that generic network segmentation leaves open in cellular environments. Skip this if your cellular infrastructure is brownfield with minimal new deployments; OneLayer's value concentrates in organizations building or substantially upgrading private networks where device classification can happen at enrollment rather than retrofitted onto existing traffic patterns.