Data Resilience
Secure data optimisation & proactive backup
Visibility across the IT/OT boundary.
Passive network detection for industrial environments. Continuous insight into traffic flows, anomalies and threats at the most critical (and most overlooked) boundary in your organisation.
Receive insight within 30 days into your key traffic flows, anomalies and improvement areas.
Your IT is monitored. Your OT boundary is not.
Firewalls, EDR and Microsoft 365 logging are often already in place. But the boundary between IT, OT and the DMZ is where blind spots appear, and where attackers move laterally.
Modern OT environments run on standard Windows and Linux systems: SCADA servers, HMIs, historians, jump servers, OPC servers and remote access gateways. This IT-like communication is the path used during attacks, misconfigurations and lateral movement.
%
of industrial organisations have experienced at least one OT/ICS cyber incident in the past two years
days
from sensor placement to your first factual picture of what is really happening at the boundary
Passive. Non-invasive. No production disruption.
The sensor connects via SPAN port or network TAP. No active scanning, no agents, no inline blocking, no changes to PLCs, HMIs or servers. It observes, analyses and reports. Nothing more.
Step 1 - Place
A compact Raspberry Pi sensor is connected passively via SPAN port or network TAP at a critical boundary point — IT/OT edge, DMZ, remote access connection or historian.
Step 2 - Analyse
The sensor analyses traffic flows, identifies protocols, detects anomalies and enriches findings with threat intelligence, all without touching a single production system.
STEP 3 - Report
You receive traffic flow overviews, detected anomalies, zone crossing analysis, protocol visibility and concrete segmentation improvement recommendations.
Five layers of visibility and detection.
From basic network visibility to OT protocol recognition, threat intelligence enrichment and monthly improvement reporting, all from a single passive sensor.
Network visibility
Which systems connect to each other, which protocols are active, which ports are open, which DNS requests occur and which communication crosses zone boundaries.
Suspicious behaviour
Scanning activity, unexpected connections to critical systems, C2 traffic, brute-force attempts, misuse of remote access and SMB traffic crossing zone boundaries.
OT protocols
Modbus/TCP, OPC UA, Siemens S7, EtherNet/IP, DNP3 and more, even where full deep inspection is not possible, protocol recognition and traffic direction provide significant value.
Threat context
Detected traffic is enriched against known malicious IPs, suspicious domains, ransomware infrastructure and sector-specific threat indicators.
Reporting
Monthly reporting with firewall rule recommendations, segmentation advice, zone crossing analysis and support during incident analysis.
Raspberry Pi Powered
Compact. Passive. Non-invasive.
Runs on a Raspberry Pi. Connects via SPAN port or network TAP. Nothing installed on PLCs, HMIs, servers or workstations. No changes. No scanning. No disruption.
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Real situations. Real risk.
Examples of what the sensor detects and why it matters in an OT context.
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Industrial protocols we recognise.
In addition to standard IT protocols, the sensor identifies relevant OT and industrial protocol flows where network position and traffic allow.
Modbus/TCP
IEC 60870
Siemens
S7S7comm
OPC UA
IEC 62541
EtherNet/IP
CIP
BACnet/IP
Building automation
IEC 60870-5-104
CADA
MQTT
Sparkplug B
DNP3
Utility control
RDP / SSH / SMBIT
IT in OT
DNS / HTTPS
Standard IT
Industrial APIs
Web interfaces
PROFINET
Related traffic
Practical insight, actionable output.
You receive practical, usable reporting, not raw technical alerts. The output is designed for both security teams and operational stakeholders.
Key traffic flow overview
Which systems communicate, which protocols are in use, which connections cross zone boundaries.
Notable and unusual connections
Flagged connections that deviate from expected behaviour or the intended segmentation model.
Suspicious behaviour detection
Alerts on scanning, C2 traffic, unexpected zone crossings and high-risk external destinations.
Segmentation improvement advice
Concrete recommendations for firewall rules, zone isolation and conduit improvements.
OT protocol visibility
Which industrial protocols are active, where they flow and whether they cross expected zone boundaries.
Monthly reporting
Ongoing detection, trend analysis and continuous improvement of your OT security maturity.
Managed detection, without the complexity.
Many organisations know their OT boundary is a blind spot but lack the internal resources to address it. The WatchEagle sensor is designed to be low-threshold, place one sensor and receive insight within 30 days.
No large deployment projects. No agent rollouts. No production downtime.
IT/OT boundary blind spots
Identified, documented and addressed with concrete recommendations.
Unknown communication flows
Surface what is really happening between zones.
Supplier and remote access control
Validate that third-party access stays within agreed boundaries.
Segmentation validation
Confirm whether your network zones still match the intended design.IEC 62443 support
Practical input for zone/conduit models and OT risk assessments.
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Make your zone and conduit model demonstrable.
The sensor helps answer the practical questions that IEC 62443 risk assessments and segmentation reviews require.
Frequently Asked Questions
Will the sensor impact our production environment?
No. The sensor is purely passive, connected via SPAN port or TAP, it only receives a copy of traffic. It cannot block, modify or interfere with network communication.
Does anything need to be installed on OT systems?
Nothing. No agents, no software, no changes to PLCs, HMIs, SCADA servers or workstations. The only installation is the sensor itself at a network access point.
What does the output look like after 30 days?
You receive a practical report covering key traffic flows, protocol usage, notable or unusual connections, identified zone crossings, risky remote access patterns and concrete segmentation improvement recommendations.
How does this support IEC 62443 compliance work?
The sensor makes zone and conduit communication demonstrable — which systems communicate, which protocols cross boundaries, whether traffic matches the intended design. This provides practical input for OT risk assessments, segmentation reviews and IEC 62443-related initiatives.
Get started with your free trial
Gain visibility into your most important network traffic flows, anomalies, and areas for improvement. Your first month is completely free. If you decide not to continue after the trial, no charges will apply.