OT Security Services
96% of OT security incidents originate from IT-level compromises, yet most industrial organizations lack visibility into their operational technology networks. The OT security market will reach $50 billion by 2030 as ransomware attacks on critical infrastructure surge 40% annually. Opsio delivers end-to-end OT security services — from asset discovery and risk assessment through network segmentation, monitoring, and managed OT SOC — protecting the systems that run factories, power grids, and essential services.
Trusted by 100+ organisations across 6 countries
$25B+
OT Security Market 2026
96%
OT Incidents from IT
60%
Orgs Hit in 2025
16.5%
Market CAGR
Part of Cloud Security & Compliance
What is OT Security Services?
OT security services refer to the specialised cybersecurity practices, technologies, and managed functions designed to protect operational technology environments — including industrial control systems, SCADA platforms, distributed control systems, and programmable logic controllers — from cyber threats that could disrupt physical processes or cause safety incidents. Core scope typically covers OT asset discovery and inventory, network segmentation between IT and OT zones, vulnerability assessment of legacy industrial devices, continuous traffic monitoring using protocols such as Modbus, DNP3, and OPC-UA, incident detection and response through a dedicated OT SOC, and IEC 62443 compliance management. Relevant standards and frameworks applied across engagements include IEC 62443, NIST SP 800-82, the NERC CIP series for energy environments, and NIS2 for organisations operating within the European Union's critical infrastructure perimeter. Tooling commonly deployed spans Claroty, Dragos, Nozomi Networks, and Tenable OT for passive asset visibility, alongside Fortinet NGFWs for industrial DMZ enforcement and SIEM platforms such as IBM QRadar or Microsoft Sentinel for log correlation across converged IT/OT environments. Leading vendors referenced in this space include Fortinet, IBM, Zscaler, and Optiv, reflecting the market's breadth from network enforcement to managed detection. Pricing for managed OT security engagements varies considerably by asset count and monitoring scope, with mid-market programmes typically ranging from USD 80,000 to USD 250,000 annually. Opsio delivers OT security services to manufacturing, energy, and critical infrastructure clients across Nordic markets and beyond, operating from its Sweden headquarters in Karlstad and an ISO 27001-certified delivery centre in Bangalore, backed by a 24/7 NOC, 99.9% uptime SLA, and a team of 50-plus certified engineers across more than 3,000 projects completed since 2022.
Secure Your Industrial Operations With OT Cybersecurity
Operational technology (OT) — the hardware and software that monitors and controls physical processes in factories, power plants, water treatment facilities, and transportation systems — was never designed for a connected world. Industrial control systems (ICS), SCADA platforms, and PLCs were built for reliability and safety over decades-long lifecycles, not for defending against nation-state actors, ransomware gangs, and AI-powered attacks that now target them daily. The convergence of IT and OT networks has created an expanded attack surface where a single compromised IT credential can cascade into physical process disruption. Dragos reports that 60% of organizations experienced OT security incidents in 2025, while the SANS Institute found that only 52% have adopted OT-specific monitoring. The gap between exposure and visibility is where industrial breaches happen — and where Opsio's OT security services close the risk.
Opsio takes a defence-in-depth approach to OT security, layered across the Purdue Model architecture: asset discovery and inventory at every level, network segmentation using zones and conduits per IEC 62443, continuous OT network monitoring with industrial-protocol-aware detection, vulnerability management that respects operational uptime, and a managed OT SOC staffed with analysts who understand both cybersecurity and industrial processes. We secure without disrupting production. Related Opsio services: Cloud Security Services for India, Cloud Security Consulting Services, Security Assessment & Forensics for India, and Cybersecurity Service Provider.
Service Deliverables
OT Asset Discovery & Inventory
Passive and active discovery of all OT assets — PLCs, HMIs, RTUs, SCADA servers, sensors, and network devices — including shadow assets not tracked by existing CMDB. Real-time asset inventory with firmware versions, communication paths, and risk scoring.
OT Network Segmentation
Design and implementation of zones and conduits architecture per IEC 62443. Micro-segmentation between safety, control, and enterprise networks using industrial-grade firewalls and DMZs. Purdue Model enforcement with monitored conduit policies.
OT Threat Monitoring & Detection
24/7 monitoring of OT network traffic using deep packet inspection for industrial protocols (Modbus, OPC UA, DNP3, EtherNet/IP, Profinet). Anomaly detection for unauthorized commands, firmware changes, and lateral movement. Integrated with our managed OT SOC.
ICS/SCADA Security Assessment
Comprehensive security assessment of ICS and SCADA environments covering network architecture, access controls, patch status, configuration hardening, and incident response readiness. Aligned to IEC 62443 security levels and NIST 800-82 controls.
OT Vulnerability Management
Risk-prioritized vulnerability management that respects operational uptime constraints. Virtual patching, compensating controls for unpatchable legacy systems, and coordinated maintenance window patching. Integration with vendor advisories from Dragos, Claroty, and ICS-CERT.
NIS2 & Compliance for OT
NIS2 Directive compliance for essential and important entities operating OT environments. Gap assessment, security control implementation, incident reporting procedures, and supply chain security requirements. Also covers NIST 800-82, IEC 62443, and sector-specific regulations.
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