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 encompass the cybersecurity practices, technologies, and managed processes designed to protect operational technology environments — including industrial control systems, SCADA platforms, distributed control systems, and programmable logic controllers — from threats that could disrupt physical operations or cause safety failures. Standard scope across the discipline includes OT asset discovery and inventory, network segmentation and zone-based architecture aligned to the Purdue Model, continuous threat detection and anomaly monitoring across IT/OT convergence points, vulnerability assessment and patch management adapted to legacy industrial systems, incident response planning for ICS environments, and compliance readiness against IEC 62443, NIST SP 800-82, and the EU NIS2 Directive. Practitioners deploy purpose-built industrial security platforms from vendors such as Claroty, Armis, Dragos, Fortinet FortiGuard OT Security Service, and Cisco to gain protocol-aware visibility into Modbus, DNP3, and EtherNet/IP traffic that traditional IT tools cannot inspect. IBM and Kroll represent the managed services tier, offering dedicated OT SOC capabilities that differ from IT SOC operations through industrial protocol parsers, slower patching cycles, and availability-first incident playbooks rather than confidentiality-first ones. Managed OT security engagements for mid-market industrial organizations typically range from roughly 50,000 to 250,000 USD annually depending on asset count, site complexity, and SOC coverage tier, with risk assessment projects often scoped separately at 20,000 to 80,000 USD. Opsio delivers OT security services from its Sweden headquarters and ISO 27001-certified Bangalore delivery centre, combining 24/7 NOC coverage, a 99.9% uptime SLA, and cloud security depth as an AWS Advanced Tier Services Partner and Microsoft Partner to serve mid-market manufacturers and Nordic enterprises bridging IT and OT risk programs.
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 Consulting Services, Cloud Security Services — Multi-Cloud Protection & 24/7 SOC, SOC Security Services — 24/7 Managed SOC & MDR, and Cloud Security & Compliance Services — SOC, MDR, Penetration Testing.
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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