OT & IoTOT Patching

OT patch and vulnerability management in Saudi Arabia: decide what to patch, and what to do when you cannot

Industrial systems cannot be patched on a Tuesday. We map vulnerabilities to your actual assets, work with vendors to validate patches, schedule them into maintenance windows and put compensating controls around everything else.

  • Vulnerabilities matched to your asset versions
  • Vendor-approved patching in planned windows
  • Virtual patching and segmentation where patching is impossible
Decisions
Risk-basedDecisions
Approved
VendorApproved
Patching
VirtualPatching
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PlannedWindows

01Overview

What is OT patch management?

OT patch management is the controlled process of identifying vulnerabilities in industrial systems, deciding whether and when to patch each one, testing and applying updates in planned maintenance windows, and using compensating controls where a patch cannot be applied.

Why can we not just patch?

Updates may need vendor approval, can change process behaviour, and often require downtime that the plant cannot afford.

What if a patch is not available?

Legacy systems may have no patch. We use isolation, virtual patching, monitoring and allow-listing.

How do we prioritise?

By exploitability, exposure, asset criticality and the process impact of both the flaw and the patch.

Who decides?

Operations and security together, with decisions recorded.

02What we do

Six steps in a safe OT patching programme

Each step is documented for audit.

01

Asset and version inventory

You cannot patch what you cannot see.

What you receive

An inventory tied to vulnerabilities.

  • Passive discovery
  • Firmware and software versions
  • Vendor and support status
  • End-of-life tracking
02

Vulnerability mapping

Match known vulnerabilities to your actual versions and exposure.

What you receive

A short, real list of risks.

  • Vendor advisories and ICS-CERT notices
  • Exploit and exposure context
  • False-positive removal
  • Process impact analysis
03

Risk-based decisions

Patch, mitigate or accept, with an owner and a date.

What you receive

Decisions you can defend.

  • Decision matrix
  • Operations sign-off
  • Risk acceptance register
  • Review dates
04

Test and validate

Vendor validation and testing on a staging or simulator environment.

What you receive

Patches that do not surprise the plant.

  • Vendor compatibility checks
  • Lab or simulator testing
  • Rollback plans
  • Change approval
05

Schedule and deploy

Patching inside planned shutdowns and maintenance windows.

What you receive

Fewer emergency changes.

  • Window planning with operations
  • Staged rollout
  • Backups before change
  • Post-change verification
06

Compensating controls

Protect what cannot be patched.

What you receive

Risk reduced without touching the device.

  • Segmentation and isolation
  • Virtual patching at the network
  • Application allow-listing
  • Enhanced monitoring

03How it works

A patching cycle that fits plant calendars

Repeated each maintenance cycle.

  1. 01

    Inventory

    Keep the asset and version list current.

  2. 02

    Map

    Match advisories to assets.

  3. 03

    Decide

    Patch, mitigate or accept.

  4. 04

    Test

    Validate with the vendor and in a lab.

  5. 05

    Deploy

    Apply in the planned window.

  6. 06

    Verify

    Confirm and record.

04Reference

Patch, mitigate or accept?

A simple model to start a discussion with operations.

SituationTypical decisionWhy
Exploited vulnerability, exposed asset, patch availablePatch in next window, mitigate nowHigh likelihood and impact
Vulnerability on an isolated asset with no path from outsideMitigate, patch at next shutdownLow exposure
End-of-life system, no patchIsolate and monitor, plan replacementPatching not possible
Patch not validated by the vendorWait for validation, add compensating controlsRisk of process disruption
Low severity, no exposureAccept and recordCost exceeds benefit

05Technology

Ecosystems we patch and protect

We work with the vendors you run.

Siemens logo
Rockwell Automation logo
Rockwell Automation
ABB logo
Schneider Electric logo
Schneider Electric
Qualys logo
Qualys
Fortinet logo
Fortinet
Palo Alto Networks logo
Palo Alto Networks

Logos are trademarks of their respective owners and are shown to indicate platforms we work with.

06Saudi Arabia and the GCC

Patching expectations for critical operators

Auditors expect a documented process, not perfection.

  • NCA

    NCA ECC and OTCC

    Vulnerability management and secure configuration are control areas, and OT environments are expected to manage them in a way that respects safety.

  • Audit

    Documented exceptions

    Risk acceptance and compensating controls need evidence, owners and review dates.

  • Operations

    Plant calendars

    Maintenance windows in the Kingdom are planned around production and seasonal demand. We plan with them.

07Why GoAgile

Why plants work with GoAgile on OT patching

Because patches that break production are worse than the vulnerability.

Talk to a security specialist
  • Operations in the room

    Decisions made with plant engineers.

  • Tested first

    Vendor validation and lab testing.

  • Mitigation expertise

    Segmentation and virtual patching.

  • Audit trail

    Every decision recorded.

Credentials

ISO 9001 certified
ISO 9001
Quality management
ISO 14001 certified
ISO 14001
Environmental management
ISO 45001 certified
ISO 45001
Occupational health and safety
ISO 27001 certified
ISO 27001
Information security management
Registered cybersecurity service provider
MSOC licence, Tier 2
Penetration testing accreditation
Qualified Security Assessor company
Type II report, GoAgile
Business continuity management

08Clients

Trusted by banks, operators and public bodies across Saudi Arabia and the GCC

Organisations in regulated sectors choose GoAgile because security is delivered by the team that also builds and runs their infrastructure.

  • Tier-1 Saudi bank

    Banking

  • National energy operator

    Oil, gas and power

  • Government authority

    Public sector

  • Regional telecom operator

    Telecommunications

  • Healthcare group

    Hospitals and clinics

  • Retail and e-commerce group

    Retail

  • Ports and logistics operator

    Logistics

  • Insurance company

    Insurance

  • Fintech and payments provider

    Financial technology

  • Industrial manufacturer

    Manufacturing

National energy operatorOT security assessment

OT assessment and segmentation for an energy operator

Plant networks had grown without a clear map, and remote access for vendors was a concern.

  • Passive discovery of OT assets without touching production
  • Purdue-model segmentation design and industrial firewall rules
  • Secure remote access for vendors with session recording

Result: A mapped, segmented network with a prioritised remediation plan the plant team could schedule.

Industrial manufacturerVulnerability management

Risk-based vulnerability management for a manufacturer

Scanners produced thousands of findings and no one knew which mattered.

  • Asset inventory and criticality tagging
  • Risk-based prioritisation with threat context
  • Tracked remediation with owners and SLAs

Result: The critical backlog shrank and reporting became a monthly routine.

Tier-1 Saudi bankRed team exercise

A threat-led red team exercise for a bank

The bank needed evidence that its people, processes and detection would hold up against a realistic attacker, in line with SAMA expectations.

  • Agreed rules of engagement and a threat scenario with the CISO
  • Ran a controlled exercise against production systems
  • Ran a purple team workshop so defenders could see every step

Result: Detection gaps were fixed, playbooks were updated and the board received a plain-language report.

Client names are withheld for confidentiality.

How many of your controllers run firmware you cannot update?

Tell us your sites and vendors. We will propose a patch and mitigation programme.

Plan OT patching

10Questions answered

OT Patch Management FAQs

Why is OT patching different from IT patching?

OT systems run physical processes, have long lifecycles, depend on vendor approval and often cannot be taken offline, so updates must be tested and scheduled with operations.

What is virtual patching?

A control, usually in a network security device, that blocks attempts to exploit a known vulnerability without changing the vulnerable system itself.

What if the vendor no longer supports the system?

We isolate the system, restrict access, monitor it and plan its replacement, and record the risk acceptance.

Do you patch the systems yourselves?

We can plan and manage patching with your engineers and vendors, under your change control.

How often should OT systems be patched?

There is no single answer. Patch cycles follow vendor validation and maintenance windows, usually annually or at planned shutdowns, with emergency action for exploited flaws.

How do you find vulnerabilities without scanning?

By passively identifying assets and firmware versions and matching them to vendor and public advisories, avoiding disruptive active scans.

Talk to a OT patching specialist

Tell us about your environment and what you need. We will respond with a scoped proposal, not a brochure.

Why GoAgile for OT Patch Management?

Specialists who do this work every week, reporting in Arabic and English.

  • Aligned to NCA, SAMA and the PDPL
  • Arabic and English reporting
  • Certified practices, ISO 27001
  • Confidential by default

+966 53 534 5103
contact@goagiletechnologies.com

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