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Platform Overview

The First Watch® platform is purpose-built to protect industrial control systems from unauthorised changes.

Unlike traditional solutions focused on monitoring, First Watch® provides active enforcement of what is allowed to happen across industrial environments.


Designed for Industrial Control Environments​

The platform is specifically designed to operate within the Purdue Enterprise Reference Architecture (CPwE) used in modern industrial systems.

Reference Architecture

First Watch® focuses primarily on protecting:

Level 1 – Basic Control​

  • PLCs (Programmable Logic Controllers)
  • RTUs (Remote Terminal Units)
  • Drives and motion controllers
  • Safety controllers

Level 2 – Area Supervisory Control​

  • SCADA / HMI systems
  • Operator workstations
  • Engineering workstations
  • Local control applications (e.g. FactoryTalk clients)

These levels represent:

where control decisions are executed and where unauthorised changes have immediate operational impact


Extended Coverage (Optional)​

While the primary focus is Level 1 and Level 2, the platform can also monitor and protect:

Level 3 – Site Operations​

  • SCADA servers (e.g. FactoryTalk Application Server)
  • Domain controllers (e.g. Microsoft Active Directory)
  • Application servers and data historians

Level 0 – Process Layer​

  • Smart sensors and field devices
  • Industrial I/O systems
  • Serial communication links

This capability is enabled based on customer requirements and operational context.


Flexible and Extensible by Design​

The platform is designed for real industrial variability.

  • Supports multiple industrial protocols and communication models
  • Adapts to site-specific architectures and constraints
  • Extends beyond standard capabilities when required

If a capability is not available out-of-the-box, it can be:

rapidly developed and integrated using the First Watch® SDK

This ensures the platform remains aligned with:

  • unique plant configurations
  • legacy systems
  • specialised industrial requirements

Built on ISA/IEC 62443 Principles​

The platform is designed in alignment with ISA/IEC 62443, the leading standard for industrial cybersecurity.

This ensures:

  • Segmentation and zone-based protection
  • Controlled access and enforcement of allowed actions
  • Secure lifecycle management of systems
  • Auditability and traceability of changes

These principles are critical for:

  • regulatory compliance
  • risk management
  • safe operation of industrial environments

Compliance is not an add-on — it is embedded into how the platform operates


Alignment with NIST Cybersecurity Framework (CSF)​

The platform supports key functions of the NIST Cybersecurity Framework (CSF):

NIST CSF

  • Identify — Asset discovery and classification
  • Protect — Enforcement of authorised actions
  • Detect — Monitoring changes and anomalies
  • Respond — Alerting and guided response

This alignment ensures the platform supports:

  • structured cybersecurity programs
  • governance and reporting
  • operational resilience

Engineered for Control, Not Just Visibility​

Traditional systems answer:

“What is happening?”

First Watch® answers:

“What is allowed to happen?”

This shift from monitoring to control is essential in environments where:

  • production continuity matters
  • safety is critical
  • change must be governed

Next Steps​

Explore the conceptual foundations of the platform: