Trout Access Gate vs. Zscaler
Why trust the cloud with your most critical infrastructure?
Zscaler routes your industrial traffic through cloud services for security processing. Overlay networking delivers cloud-style agility and management while keeping your critical infrastructure data exactly where it belongs — on your premises.
Side-by-side Compare
On-premises control vs. cloud dependency for critical infrastructure
Zscaler's cloud-first approach works great for office environments, but industrial networks have different rules—air-gapped systems, microsecond latencies, and data that can't leave your facility.
Trout
Operates independently of internet connectivity
Local processing with minimal latency
Full functionality in isolated networks
All security analysis performed on-premises
Local data processing for regulatory requirements
Integrates with existing infrastructure
Flat, predictable pricing
Fast support from engineers who built it
Zscaler
Requires cloud connectivity for security functions
Cloud routing introduces additional latency
Multi-week infrastructure projects
Security analysis occurs in cloud infrastructure
Cloud processing may not meet data sovereignty requirements
Requires traffic routing through cloud services
Choose Trout Access Gate if...
You need security that works when the internet doesn't.
You want cloud-style management without cloud-style dependencies.
You have compliance requirements that demand data sovereignty.
Trout Updates
Overlay Networking
Secure and segment an existing infrastructure — without touching the underlying physical network.
2025 State of Ransomware
Our analysis show an increase of 47% vs 2024, with roughly 56% of attacks targeting industrial companies.
Where the Packets Roam
On why integration-driven products are delivering profoundly higher value in industrial environments.
Why Trout?
Industrial Networks Need Purpose-Built Security
Industrial networks have grown connected and complex. The reality of these environments:
Legacy Infrastructure: many older devices can’t run modern security agents.
Protocol Complexity: standard enterprise NAC solutions struggle with industrial protocols.
Operational Requirements: Security deployments must not disrupt production, making high-touch solutions unsuitable for industrial environments.
Trout Technology
Trout creates an intelligent security layer that works with your existing network topology
Trout is a drop-in appliance for OT networks — built to give IT teams visibility and control without the usual overhead. No more SSH’ing into devices to tcpdump, managing a fleet of agents, or fielding endless VLAN access requests.
Everything you need in one appliance
Plug & See. Connect Trout to your firewall or switch — see assets and protocol flows. No additional rewiring needed or VLAN work.
Segment & Control. Define software-enforced zones to isolate systems and enforce least-privilege access across your network.
Secure Remote Access. Grant on-demand, policy-driven access for contractors or remote teams — with visibility and control.
Log & Prove. Capture clean, structured logs from the edge. Feed them into your SIEM or use them for root-cause and audit trails.
Automate Compliance. Enforce security policies and automate audit-ready evidence.
