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OT Policies and Procedures

Make OT cybersecurity requirements practical

Policies set expectations; procedures make them repeatable. OTVista develops and reviews OT-specific documents that reflect how your plants actually operate, so that they are followed rather than filed.

Service sheet
Service
OT Policies and Procedures
Scope areas
11
Potential deliverables
4
Engagement
Scoped to you

In short

OT cybersecurity policies define what an organization requires to protect its industrial systems; procedures describe how teams meet those requirements in daily work, such as granting vendor access, applying patches or restoring a controller.

The challenge

Corporate IT policies are often applied to OT environments unchanged. They may require monthly patching, automatic screen locks or standard antivirus on systems where those measures are impractical or unsafe — so the policy is quietly ignored.

Good OT documents state the intent, allow for operational constraints and describe compensating measures where the standard approach cannot be used.

Scope and activities

Documents commonly developed or reviewed:

  • OT cybersecurity policy

    Scope, principles, roles and high-level requirements.

  • Asset management procedure

    How assets are recorded, classified, changed and retired.

  • Access management procedure

    Account lifecycle, privileges and shared account control.

  • Remote access procedure

    Requesting, approving, supervising and logging remote sessions.

  • Patch and vulnerability management procedure

    Advisory review, applicability, testing and mitigation.

  • Backup and recovery procedure

    What to back up, how often, where, and how restores are tested.

  • Incident response procedure

    OT-specific detection, escalation, containment and recovery steps.

  • Change management procedure

    Security review of logic, configuration and network changes.

  • System hardening guidance

    Baseline configuration for OT workstations, servers and network devices.

  • Logging and monitoring procedure

    What is logged, retained and reviewed.

  • Third-party access procedure

    Requirements for vendors, integrators and contractors.

Potential deliverables

Final deliverables depend on the agreed engagement.

  • Document gap reviewExisting documents compared with needs and good practice.
  • Policy and procedure draftsClear documents in your template and terminology.
  • Roles and responsibilities matrixWho does what across engineering, IT and operations.
  • Implementation notesPractical guidance for rollout and training.

Engagement approach

  1. Review

    Read existing documents and understand how work is currently done.

  2. Consult

    Interview the people who will follow the procedures.

  3. Draft

    Write documents that state intent, steps and allowed exceptions.

  4. Refine

    Review drafts with stakeholders and adjust.

  5. Handover

    Deliver final drafts for your approval and publication.

Assumptions and limitations

  • Final approval, publication and implementation of policies remain the responsibility of your organization.
  • Documents are tailored to your environment; generic templates are a starting point only.

What helps us get started

  • Current corporate and site security documents
  • Document templates and approval workflow
  • Access to people who perform the relevant tasks

Sensitive material is exchanged only after an engagement is agreed, using a method we agree with you — never through the website form.

Questions about OT Policies and Procedures

Can we use our IT security policies for OT?

Partly. Principles often carry over, but requirements such as patch timing, endpoint controls and account lockouts usually need OT-specific wording and documented exceptions.

Who should own OT cybersecurity policies?

Ownership varies, but accountability should be clear and shared between OT/engineering leadership and the security function, with site-level responsibility for procedures.

Related services

Further reading

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