Industrial environment with threat contained at the IT OT boundary
06OT/ICS Cyber Defense

Protect production without putting production at risk

Reduce cyber exposure while respecting physical safety, availability, legacy equipment and maintenance windows.

Client situation

In OT, defense must protect the process, not just the network.

IT/OT convergence, vendor remote access and long-lifecycle assets create exposure without allowing aggressive changes.

What Bellot reviews

We look at the real environment, not a generic checklist.

  • IT/OT boundaries and remote access
  • PLCs, HMIs, engineering and historians
  • Process dependencies and availability
  • Compensating controls and passive visibility

What you receive

Clear outputs your team can use.

  • OT architecture and asset map
  • Scenarios tied to physical consequence
  • Safe segmentation and hardening plan
  • Monitoring and operations-aligned runbooks

How the engagement works

A controlled path from context to operational capability.

01

Understand

Consequence, safe state and dependencies.

02

Observe

Map assets, flows and access.

03

Architect

Define zones, controls and visibility.

04

Prepare

Validate response without threatening production.

Engagement modes

Assessment, engineering or continuous evolution, each with a different commitment.

Harpia / Operational role

AI expands analysis. Authority stays explicit.

With authorized and safe sources, Harpia relates IT, remote access and OT telemetry without commanding the industrial process.

What we need from the client

  • Automation, maintenance, IT and process safety
  • Diagrams and approved windows
  • Safety and change rules

Boundaries and exclusions

  • Safety and continuity take priority
  • No active scanning without approval
  • Production testing is coordinated

Complementary modules

  • IT/OT segmentation
  • Secure remote access
  • Passive inventory
  • Training

When to engage

Bring Bellot in when the next defensive decision requires evidence.

Growing IT/OT convergence
Third-party remote access
Plants without dedicated OT architecture

Scope, access and operating boundaries are confirmed before work begins.

Discuss my industrial environment