Armis Centrix™ Network Segmentation is a commercial operational technology network segmentation tool by Armis. Sphyrna HFD Data Diode is a commercial operational technology network segmentation tool by Sphyrna Security. Compare features, ratings, integrations, and community reviews side by side to find the best operational technology network segmentation fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Armis Centrix™ Network Segmentation
Healthcare and medical device-heavy enterprises need Armis Centrix™ Network Segmentation because it discovers and maps IoMT communication paths that generic segmentation tools miss, then enforces policy without requiring manual device reconfiguration. The platform covers NIST asset management and continuous monitoring across its core workflow, and automated quarantine of compromised devices actually closes the gap between detection and containment that most segmentation solutions leave open. Skip this if your environment is mostly standard IT infrastructure with few connected medical devices; the value proposition narrows significantly outside healthcare and life sciences.
Enterprise and mid-market OT security teams protecting critical infrastructure from east-west lateral movement will get the most from Sphyrna HFD Data Diode because it enforces unidirectional data flow at wire speed with hardware-level assurance that no firmware or software compromise can bypass. The FPGA architecture with separate ingress and egress quads plus encrypted, signed rulesets mean you can filter at layers 2-4 and decrypt traffic for inspection without creating a single point of trust failure on the network path itself. Skip this if your environment is predominantly IT-focused or you need bidirectional segmentation; data diodes are inherently one-way tools and there's no workaround for that constraint.
Network segmentation solution for healthcare & IoMT device security
FPGA-based hardware filtering data diode for unidirectional data transfer
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Common questions about comparing Armis Centrix™ Network Segmentation vs Sphyrna HFD Data Diode for your operational technology network segmentation needs.
Armis Centrix™ Network Segmentation: Network segmentation solution for healthcare & IoMT device security. built by Armis. headquartered in United States. Core capabilities include Asset discovery for medical devices and IoMT, Communication path and access control mapping, Virtual barrier creation for network segmentation..
Sphyrna HFD Data Diode: FPGA-based hardware filtering data diode for unidirectional data transfer. built by Sphyrna Security. headquartered in Canada. Core capabilities include FPGA-based hardware filtering with 650K logic cells, Unidirectional data transfer with physical and logical assurance, Wire-speed filtering for ISO layers 2-4..
Both serve the Operational Technology Network Segmentation market but differ in approach, feature depth, and target audience.
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