ICS/OT Cybersecurity Assessment (Brownfield)
Comprehensive security assessment services for existing (brownfield) OT environments. We evaluate the current state of your industrial systems and deliver actionable findings that drive real security improvement.
Assessing What Already Exists
Unlike greenfield projects where security is designed in from the start, brownfield facilities have evolved through years of expansions, vendor integrations, and operational changes. Systems were connected for functionality, not security. Network boundaries blurred over time. Documentation fell behind reality. Our assessments cut through this complexity to give you a clear, evidence-based picture of your current security posture and a concrete path forward.
Risk Assessment
Structured risk identification, analysis, and treatment planning for industrial environments. Evaluates threats across safety, operational, financial, and regulatory dimensions using IEC 62443 and NIST CSF.
- Threat modeling and asset criticality analysis
- Impact and likelihood scoring across safety, operational, and financial dimensions
- Risk register with treatment plans aligned to maintenance windows
Vulnerability Assessment
Comprehensive identification and analysis of security weaknesses across OT networks, systems, and industrial assets using passive, non-intrusive methods that protect process availability.
- Passive network reconnaissance and asset discovery
- Correlation against NVD, ICS-CERT, and CISA KEV catalog
- Risk-prioritized findings based on operational impact, not just CVSS
Gap Assessment
Systematic evaluation against IEC 62443 requirements with maturity scoring across all foundational requirements, compliance mapping, and a prioritized remediation roadmap.
- IEC 62443 FR1-FR7 compliance mapping
- Maturity heat map: current state vs. target security level
- Phased remediation roadmap with effort and resource estimates
Penetration Testing
Controlled, OT-safe penetration testing that validates security controls without risking production systems, safety controllers, or process integrity.
- OT-safe rules of engagement protecting safety and production systems
- Lateral movement and privilege escalation testing across zone boundaries
- Full evidence documentation with remediation and retest guidance
Brownfield Security
Understanding what exists before deciding what to change
Frameworks We Align With
Industries Served
Start Your Assessment Engagement
Get in touch to discuss which assessment type is right for your OT environment and how we can scope the engagement for your organization.