Modernize Industrial & Critical Networks
No network rewiring
Rapid deployment
On-premise Equipment
Used by DoD Suppliers & Manufacturers across 6 countries
The Challenge
The Challenge of Modernizing Without Downtime
For most industrial sites, modernization means painful trade-offs:
Modern cybersecurity frameworks, regulatory requirements (e.g., NIS2, IEC 62443, CMMC 2.0) demand robust segmentation, strong access controls and encryption.
At the same time, rewiring networks, replacing large amounts of hardware or redesigning the infrastructure can mean very high cost, long timelines and unacceptable downtime.
Many organizations respond by postponing modernization, leaving assets exposed and compliance goals unmet.
Trout Secure Twin
Trout: Deploy an Advanced Security Layer on top of Existing Networks
Trout turns this problem on its head. Instead of replacing what exists, we layer a Secure Twin overlay on top of your current network.
Deploy in days, not months – Trout plugs directly into your infrastructure, with no need to rewire or recertify devices. Some more readings available here.
Each asset and device is placed into a least-privilege enclave, enforcing Zero-Trust access: only the right users, at the right time, with the right permissions.
Built-in compliance – controls map directly to CMMC, NIS2, and IEC 62443, with logs and reporting included out of the box.
Continuous operations – factories, transport systems, and defense sites keep running while Trout is deployed.
You get the benefits of a fully modernized, compliant network — without the pain of network refactoring.
Benefits at a Glance
Modernization doesn’t have to mean disruption.
Trout Access Gate is an on-premise, plug-and-play appliance that brings modern networks to your factory & critical infrastructure, without disrupting production or rebuilding your network.
Speed
Full deployment in under a week for most sites.
Security
Micro-DMZ protection and encrypted data flows shield vulnerable OT assets.
Efficiency
Avoid costly redesign projects and extend the life of legacy equipment.
Compliance
Automated enforcement and reporting reduce audit fatigue.
Built for the Future
Overlay architecture adapts as your network evolves, without starting over.
How It Works
How Trout Protects On-Premise Assets with Enclaves
From day one, your legacy systems are isolated, secured, and auditable — while operations continue uninterrupted:
Assess your current OT/IT environment: inventory assets, map network zones, identify dependencies.
Design the overlay: define secure enclaves, access policies, encryption flows — tailored to your existing network.
Deploy rapidly: install the overlay without ripping out or re-certifying existing infrastructure; production continues.
Operate & Monitor: access control, encryption, logging, compliance reporting become part of your environment; the overlay adapts as you evolve.
Scale as you modernize: you can gradually refresh or rewire when you’re ready — in the meantime you’re secure and compliant.
Who this is for
Industrial/OT sites with legacy equipment or infrastructure that can’t afford major network overhaul.
Facilities required to meet modern compliance or regulatory standards (CMMC, NIS2, IEC 62443) but worried about disruption.
Organizations that want to modernize security now, not wait until the next major network refresh.
Environments where production uptime is mission-critical, and downtime is simply not acceptable.
Next Steps
See how Trout delivers Zero Trust for factories, fast.
FAQ
Secure Modernization Without Disruption
In Summary - Solution to Modernize Brownfield Environments Without Disruption.
Most industrial networks were never designed for modern cybersecurity standards. Over time, layers of systems, PLCs, and operator stations have accumulated — many of them unpatchable or dependent on legacy operating systems. Yet new regulations such as CMMC 2.0, DFARS / NIST 800-171, NIS2, and IEC 62443 require strong segmentation, encryption, and identity-based access control. For many manufacturers, the challenge is how to meet those requirements without shutting down production or redesigning their entire network.
Trout’s overlay approach solves this. Instead of re-architecting or rewiring your OT infrastructure, Trout enclaves create a secure layer on top of it — adding Zero-Trust segmentation, encrypted traffic control, and centralized access management while keeping all existing systems untouched. Every device, from the most modern HMI to the oldest CNC, can be placed inside an enclave that enforces least-privilege access and full visibility.
This on-premise appliance installs without downtime and operates alongside your existing switches and PLCs. It protects legacy assets by proxying connections, encrypting communications, and logging every user session for audit readiness. The result: a secure and compliant industrial network, without the cost, complexity, or disruption of a full network refactor.
The overlay architecture directly supports compliance with CMMC, DFARS, NIS2, and IEC 62443 controls — covering access control (AC), system and communications protection (SC), audit and accountability (AU), configuration management (CM), and incident response (IR). Whether you manage a small production site or a distributed manufacturing footprint, you can achieve secure modernization at your own pace, extending the life of your assets while bringing them in line with today’s cybersecurity expectations.
With Trout, modernization becomes incremental, affordable, and practical. You can strengthen your cybersecurity posture, satisfy auditors, and protect your production network — all without rewiring or downtime.