OT Risk Assessment
Structured risk identification, analysis, and treatment planning for industrial control system environments. We evaluate threats across safety, operational, financial, and regulatory dimensions to build a risk treatment plan aligned with how your operations actually work.
Understanding Your Risk Landscape
A vulnerability assessment tells you what weaknesses exist. A risk assessment tells you which ones matter most in your specific operational context. The distinction is critical: not every vulnerability carries the same consequence, and remediation resources are always limited.
In OT environments, risk must be evaluated across multiple dimensions that go far beyond data confidentiality. Safety consequences, operational disruption, financial impact, and regulatory non-compliance each carry different weight depending on the facility, the process, and the systems involved.
Our OT Risk Assessment applies a structured methodology aligned with IEC 62443 and the NIST Cybersecurity Framework. We quantify risk across your industrial environment and deliver a treatment plan that accounts for maintenance windows, capital planning cycles, and the realities of continuous operations.
Core Assessment Areas
- Asset Categorization
- Physical Security
- Change Management
- Vulnerability Assessment
- Governance Evaluation
- Incident Response
- Threat Review
- Configuration Review
- Disaster Management
Risk-Based Approach
Quantifying risk in terms of operational, safety, and regulatory impact
Engagement Methodology
A structured, phased approach designed for the safety, availability, and compliance requirements of operational technology environments.
Requirement Understanding and Scope Definition
Establish the assessment boundaries, objectives, and success criteria. Identify the systems, zones, and processes in scope. Align on the risk framework to be applied and define the assessment timeline around operational constraints and maintenance windows.
Stakeholder Kick-off and Coordination
Conduct kick-off sessions with plant operations, engineering, IT, and management stakeholders. Define roles, responsibilities, and communication protocols. Establish access requirements, safety briefings, and site-specific procedures for the assessment team.
Documentation Collection and Pre-Assessment Review
Gather existing documentation including network diagrams, asset inventories, previous audit reports, security policies, incident logs, and change management records. Perform a desk-based review to identify preliminary areas of concern before on-site work begins.
Threat Understanding and Asset Analysis
Develop a threat profile specific to the facility and sector. Categorize assets by criticality based on their role in safety, production continuity, and regulatory compliance. Map threat actors, attack vectors, and historical threat intelligence relevant to the operational environment.
On-Site Assessment
Conduct physical walkthroughs and interviews with operators, engineers, and administrators. Verify network architecture against documentation, inspect physical security controls, observe operational practices, and identify deviations between documented procedures and actual implementation.
Configuration Review
Analyze configurations of firewalls, switches, routers, servers, and industrial endpoints. Evaluate access control lists, segmentation enforcement, remote access configurations, and authentication mechanisms. Identify misconfigurations, default credentials, and policy violations.
Vulnerability Identification
Identify technical vulnerabilities across OT assets using passive reconnaissance, vendor advisory correlation, and configuration analysis. Cross-reference findings against NVD, ICS-CERT advisories, and the CISA Known Exploited Vulnerabilities catalog without active scanning of production systems.
Risk Analysis
Evaluate each identified risk by combining threat likelihood with consequence severity across four dimensions: safety impact, operational disruption, financial loss, and regulatory non-compliance. Apply a structured scoring methodology to produce quantified risk ratings for each finding.
Risk Prioritization and Risk Register
Consolidate all findings into a comprehensive risk register. Prioritize risks based on their composite score and the organization's risk appetite. Group related findings to identify systemic issues and highlight risks that require immediate attention versus those suitable for planned remediation.
Mitigation Strategy and Risk Treatment Plan
Develop a risk treatment plan that specifies recommended controls, compensating measures, and acceptance criteria for each risk. Align remediation activities with plant maintenance schedules, capital planning cycles, and operational priorities. Define a phased roadmap with clear milestones.
Report Preparation
Compile the complete assessment into a structured report including an executive summary, detailed technical findings, the risk register, and the treatment plan. Deliver a board-level summary alongside the full technical report to support decision-making at all organizational levels.
Implementation Support and Closure
Present findings to stakeholders, answer technical questions, and provide guidance on implementing the recommended controls. Offer post-assessment support to assist with remediation planning, vendor coordination, and validation of implemented measures. Formally close the engagement with a knowledge transfer session.
Service Deliverables
- Detailed risk assessment report
- Comprehensive risk register
- Network and device configuration analysis
- Vulnerability assessment findings
- Risk treatment plan with phased roadmap
- Executive summary with recommendations
- Post-assessment implementation support
Frameworks We Align With
Industries Served
Start Your OT Risk Assessment Engagement
Get in touch to discuss your specific OT environment and how we can scope this engagement for your organization.