OT · OT Security

Protect the systems that keep production running.

IT and OT convergence connects plant floors, utilities and critical infrastructure to the same networks attackers target every day. We assess OT security risk, design defensible architectures and prepare you for IEC 62443, without disrupting operations or safety.

Board question

Could a cyberattack stop our plants, and would it put people or the environment at risk?

What you get

An OT risk assessment, a zones-and-conduits architecture and an IEC 62443 readiness roadmap

Typical start

Site-based OT security risk assessment

Outcomes

What changes for your organisation.

A complete inventory of OT assets, networks, remote access paths and IT/OT connections
OT cyber risks rated by safety, production and environmental impact, not IT severity alone
A target OT security architecture with zones, conduits and security levels defined
A prioritised, budgeted roadmap to IEC 62443 conformance that operations teams can deliver

Capabilities

How we help.

OT security risk assessment

Site and remote assessment of ICS, SCADA, DCS and PLC environments: asset and network discovery, threat scenarios, vulnerability and control review, rated by consequence.

OT security architecture design

Target architecture based on the Purdue model and IEC 62443-3-2 zones and conduits, covering segmentation, DMZs, secure remote access and IT/OT integration.

IEC 62443 framework readiness

Gap assessment against IEC 62443-2-1, 3-2 and 3-3, target security levels per zone, policy and procedure design, and a roadmap to certification or customer assurance.

Secure remote access and third-party connectivity

Design and review of vendor, OEM and integrator access to plant systems, with jump hosts, MFA, session control and monitoring.

OT monitoring and incident response

Requirements and selection support for OT network monitoring, plus OT-specific incident response playbooks aligned with plant safety procedures.

OT security governance

Roles and responsibilities between IT, OT and engineering, OT security policy, change management and supplier security requirements.

A typical engagement

Clear stages, visible progress.

Weeks 1–3

Discover

Site walk-downs, asset inventory, network and data-flow mapping, interviews with operations and engineering.

Weeks 3–5

Assess

Consequence-based risk assessment, IEC 62443 gap analysis and target security levels per zone.

Weeks 5–8

Design

Zones-and-conduits architecture, remediation roadmap and business case for leadership.

Frameworks and regulations

IEC 62443-2-1IEC 62443-3-2IEC 62443-3-3IEC 62443-4-2NIST SP 800-82Purdue reference modelNERC CIPCERT-In DirectionsNIS2

Complimentary · External view only

Download your attack surface report now

See what an attacker sees: exposed services, leaked credentials, expiring certificates and misconfigured domains, prioritised by business risk.

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