OT Patch Management Services
Protect your operational technology infrastructure with strategically designed patch management services — minimising risk, ensuring compliance, and maintaining operational continuity.
Purpose-Built OT Patching Methodology
Our approach is built around the unique constraints of OT environments — legacy systems, 24/7 uptime requirements, and safety certifications that standard IT patching cannot accommodate.
Asset Visibility & Baseline Assessment
Complete infrastructure mapping including device inventory, firmware versions, and vulnerability cataloging across all OT assets.
What you receive: Full OT asset register, vulnerability catalogue, firmware inventory
Vendor Coordination & Update Validation
Direct liaison with OT equipment manufacturers to source, validate, and simulate patches before deployment.
What you receive: Validated patch packages, vendor sign-off documentation
Air-Gapped & Offline Patch Delivery
Secure transfer methods for disconnected OT systems, with integrity verification at every step.
What you receive: Secure delivery confirmation, integrity verification reports
Role-Based Patch Scheduling
ICS cybersecurity-integrated scheduling with full logging, audit trails, and compliance reporting.
What you receive: Patch schedule, audit trail, compliance report
OT Patch Management Capabilities
Legacy System Patching
Address outdated industrial devices running unsupported operating systems with safe, validated patches that preserve system integrity and safety certifications.
Air-Gapped Network Patching
Secure transfer methods specifically designed for disconnected OT systems — maintaining continuity while ensuring patches are delivered and verified without internet connectivity.
Vendor Coordination
Direct liaison with OT equipment manufacturers to source, validate, and test patches offline before deployment, ensuring compatibility and preserving safety function certifications.
Compliance & Audit Trails
Full logging, documentation, and reporting aligned with IEC 62443, NIST 800-82, and ISO 27001 — ensuring your patching programme meets regulatory and audit requirements.
OT-native patching expertise
| Approach | What it simulates | Best suited for |
|---|---|---|
| Black Box | An external attacker with zero knowledge of the application's internals | External-facing apps, pre-launch assessments |
| Grey Box | A compromised insider or threat actor with partial access (credentials, architectural overview) | Post-authentication flows, privilege escalation testing |
| White Box | Full access to source code, architecture diagrams, and environment details | Deep-dive code review, CI/CD pipeline integration, maximum coverage |
Why GoAgile for OT patch management?
Our OT patch management practice is built around one principle: closing vulnerabilities without disrupting operations. We understand that every OT environment is unique — and our approach reflects that.
OT-native expertise
We understand the unique constraints of OT environments: legacy systems, 24/7 uptime requirements, and safety certifications that standard IT patching processes cannot accommodate.
Zero-disruption approach
All patches are tested in offline environments before deployment. We coordinate maintenance windows and fallback procedures to ensure operational continuity throughout.
Compliance aligned
Full documentation and audit trails aligned with IEC 62443, NIST 800-82, and ISO 27001 — giving you the evidence you need for regulatory and board-level reporting.


Close OT vulnerabilities without disrupting operations.
Talk to our OT patch management team to scope your requirements and receive a proposal within 48 hours.
