Expert advisory for securing operational technology environments — from initial gap assessment and IEC 62443 compliance through to incident response planning and network segmentation.
OT environments face a fundamentally different threat model than IT. Legacy protocols, air-gap assumptions, safety-critical systems, and 24/7 uptime requirements mean that standard IT security approaches cannot be applied without adaptation.
Rebus Novus provides OT-specific cybersecurity consulting grounded in IEC 62443, the international standard for Industrial Automation and Control System (IACS) security. Our engagements typically begin with an OT security assessment: identifying assets, mapping communication flows, evaluating zone/conduit boundaries, and scoring against the IEC 62443 security levels.
From the assessment, we develop a gap analysis and prioritised remediation roadmap — covering network segmentation, access control, patch management, backup and recovery, and incident response procedures. For organisations pursuing formal compliance, we provide documentation support and advisory through the full IEC 62443 certification pathway.
Our consultants understand OT environments first-hand — we have worked inside operating plants, SCADA environments, and remote telemetry infrastructure across the MENA region, which means our recommendations are operationally realistic.
Tell us your application and challenge — our engineering team will recommend the right approach, technology fit and a clear roadmap, no obligation.