Zero-Trust for Transportation Infrastructure.
On-premise appliance for transportation OT networks. Protect BHS, signaling, and port control without touching certified systems. Modern security services for legacy air-gapped infrastructure.

Airport
Protect BHS, BMS, FIDS, and access control systems without requalification. Modern zero-trust for legacy air-gapped terminal infrastructure.
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Rail
Secure signaling, SCADA, and train control systems across distributed rail networks — without agents on safety-certified equipment.
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Port & Maritime
Segment crane control, container management, and logistics networks. Zero-trust for operational technology across port facilities.
Learn moreSecure Transportation OT. No Requalification Risk.
Five capabilities purpose-built for transportation networks — protect certified systems like BHS, rail signaling, and port control at the network level. No agents, no downtime, no re-certification.
Certified System Protection
Protect BHS PLCs, rail interlocking, FIDS, and port SCADA without installing agents on certified equipment. Network-level enforcement preserves all existing certifications.
Multi-Site Asset Visibility
Automatic discovery and inventory across terminals, stations, depots, and port facilities. Real-time visibility into every connected device — managed and unmanaged.
IT / OT Segmentation
Overlay micro-segmentation between corporate IT and operational networks. No VLAN restructuring, no infrastructure changes required.
Controlled Vendor Access
On-premise bastion host for OEM vendors and maintenance contractors. MFA-enforced, session-scoped, fully logged — no open VPN tunnels into operational networks.
NIS2 & IEC 62443 Compliance
Continuous control enforcement for NIS2 transport directives and IEC 62443 industrial security. Assessment-ready documentation generated on demand.
Trusted by transportation and critical infrastructure operators.
distributed sites protected across harsh operational environments — securing critical infrastructure without agents or downtime.
“Our BHS was certified five years ago and we couldn't risk requalification. Trout gave us a path to bring services to legacy environments without requalification.”
Ready to get started?
Talk to our team to see how the Trout Access Gate fits your environment.
Common Questions About Transportation Security.
requalification events triggered by deployment — the Access Gate never touches certified operational equipment.
No. The Access Gate operates at the network level — it never installs agents, modifies configurations, or touches certified endpoints. BHS controllers, rail interlocking systems, and port SCADA remain exactly as certified. No re-certification or requalification required.
Yes. The Access Gate brings modern security services — zero-trust access, MFA, session logging, and micro-segmentation — to air-gapped and legacy OT networks. It operates entirely on-premise with zero cloud dependency, so isolated systems stay isolated.
The Access Gate creates encrypted overlay networks across all sites — terminals, stations, depots, and port facilities. Policy is managed centrally and enforced consistently at every location, including remote or unmanned sites.
The Access Gate supports NIS2 (mandatory for transport operators in the EU), IEC 62443 for industrial security, and sector-specific directives for rail, aviation, and maritime. It generates assessment-ready documentation and provides continuous control enforcement.
The built-in bastion host provides a controlled gateway for equipment OEMs, maintenance contractors, and third-party integrators. Each session requires MFA, is scoped to specific systems, time-limited, and fully recorded. No open VPN tunnels into operational networks.
Yes. The Access Gate installs inline on existing network infrastructure with zero downtime. No re-cabling, no IP changes, no service interruption. Deployment happens during normal operations — no maintenance windows or service outages required.



