Operational technology security environment

Operational technology security

Protect production without breaking operations.

OT security needs careful engineering: asset visibility, segmentation, controlled remote access and incident preparation shaped around availability, safety and maintainability.

OT environments are different.

Juraam frames OT security around NIST Cybersecurity Framework 2.0 and NIS2 readiness: clear governance, risk-based controls, operational resilience and incident reporting preparation. The goal is not a generic checklist, but a practical security program that works for production, building systems, utilities, workshops and connected industrial environments.

  • Start with asset, network and dependency visibility.
  • Prioritize controls by consequence to availability and safety.
  • Separate IT and OT using clear zones and controlled conduits.
  • Keep vendor access possible, but governed, logged and time-bound.
IT
DMZ
Vendor
HMI
PLC
Safety

NIST CSF 2.0 and NIS2 at the center.

NIST CSF 2.0 adds Govern to the familiar Identify, Protect, Detect, Respond and Recover functions. NIS2 raises the European baseline with stronger cybersecurity risk-management and incident-reporting expectations for essential and important entities.

ISA

ISA/IEC 62443 certified expertise

Juraam brings certified OT cybersecurity knowledge through an ISA/IEC 62443 Cybersecurity Expert certificate.

CSF

NIST CSF 2.0 alignment

Use the six CSF functions as a common language for OT security maturity, roadmap planning and management communication.

NIS2

Regulatory readiness

Prepare governance, risk treatment, supply-chain awareness, incident handling and reporting processes for NIS2 expectations.

OT

Operational fit

Translate framework outcomes into changes that respect availability, safety, vendor constraints and maintenance windows.

OT security services.

Services can be delivered as assessment, design support, implementation support, NIS2 readiness or incident preparation work.

01

Asset and communication mapping

Identify OT devices, protocols, dependencies, unmanaged systems, vendor paths and data flows.

  • PLC, HMI, SCADA and BMS
  • Remote access review
  • Criticality context
02

Segmentation design

Build practical zones between office IT, industrial networks, vendors and internet-facing services.

  • Firewall policy design
  • OT DMZ patterns
  • Rules aligned to operations
03

Secure remote access

Reduce always-on pathways and establish controlled access for vendors, engineers and support teams.

  • MFA and named accounts
  • Time-bound access
  • Logging and review
04

Hardening and backup review

Review configuration, patch constraints, recovery media, offline backups and restore procedures.

  • Availability-aware changes
  • Recovery validation
  • Legacy system handling
05

Incident readiness

Prepare isolation paths, contact trees, evidence handling, recovery playbooks and tabletop exercises.

  • IT and OT coordination
  • Clear escalation
  • Post-incident improvement
06

NIS2 governance support

Support CSF 2.0 mapping, risk register entries, reporting preparation, supplier awareness and management-ready roadmaps.

  • Practical policy language
  • Risk-ranked actions
  • Evidence-ready output

Relevant technical depth.

OT projects benefit from a foundation that spans governance, networks, systems and threat-informed security.

ISO

ISO 27001 Lead Implementer

Information security management, control implementation and risk treatment capability.

FW

Cisco and Palo Alto firewalls

Firewall policy management, segmentation, remote access and network security operations.

OS

Windows, Server and Linux

Hands-on platform administration across client, server and Linux environments.

ATT

ATT&CK-informed cybersecurity

Threat-informed analysis for detection thinking, response preparation and defensive improvements.

A CSF 2.0 change model.

OT security improvements should reduce risk without surprising operators or vendors.

GV

Govern

Clarify accountability, policy, suppliers, risk appetite and NIS2-facing responsibilities.

ID

Identify

Map assets, dependencies, vulnerabilities, data flows, remote access and operational impact.

PR

Protect

Apply segmentation, identity controls, hardening, backups and secure vendor access.

DE

Detect

Improve visibility, logging, alerting and anomaly review across IT and OT boundaries.

RS

Respond

Prepare triage, containment, communication and reporting steps for significant incidents.

RC

Recover

Validate restore paths, recovery priorities and lessons learned after incidents or outages.

OT security FAQ.

Common questions about OT security, NIS2 readiness and industrial network segmentation.

Yes. Juraam can support NIS2 readiness through governance support, risk mapping, supplier awareness, incident preparation and evidence-ready roadmaps.
Yes. Juraam uses the NIST CSF 2.0 functions Govern, Identify, Protect, Detect, Respond and Recover as a practical structure for OT security improvements.
Yes. Juraam can help design controlled IT/OT zones, firewall conduits and secure remote access while respecting operational availability and vendor requirements.

Need a grounded OT security conversation?

Share the type of site, systems involved and whether this is assessment, design, implementation or response preparation.

Discuss OT security