Overview
Industrial Control Systems (ICS) and Operational Technology (OT) environments across the United States are increasingly targeted by sophisticated cyber threats. Critical infrastructure sectors such as manufacturing, energy & utilities, oil & gas, water treatment, transportation, and smart infrastructure depend heavily on resilient ICS/OT systems. A cybersecurity breach in these environments can result in operational shutdowns, safety incidents, financial loss, and regulatory violations.
IEC 62443 is a globally recognized cybersecurity standard specifically designed for ICS/OT environments. It provides a structured framework for risk assessment, system security requirements, secure development lifecycle, and continuous cybersecurity management. For U.S. organizations, aligning with IEC 62443 supports compliance with industry regulations, strengthens critical infrastructure protection, and demonstrates cybersecurity due diligence.
Cyberintelsys, a CREST-accredited cybersecurity company, delivers comprehensive IEC 62443-aligned Vulnerability Assessment (VA) and Penetration Testing (PT) services across the United States. Our services help industrial organizations identify, assess, and remediate cybersecurity risks while ensuring operational safety and business continuity.
Importance of VA/PT for IEC 62443 Compliance
ICS/OT systems are fundamentally different from traditional IT environments. They often include legacy control devices, proprietary industrial protocols, real-time operations, and safety-critical processes that cannot tolerate downtime. Vulnerabilities may exist within PLCs, HMIs, SCADA servers, industrial networks, remote access systems, and OT-IT integration points.
Identify critical vulnerabilities: Detect weaknesses that could impact safety, availability, or process integrity.
Support regulatory alignment: Provide technical evidence to meet IEC 62443 cybersecurity requirements and industry audit expectations.
Protect operational continuity: Strengthen defenses without disrupting production or critical operations.
Enhance safety assurance: Reduce the risk of cyber incidents that could endanger personnel, equipment, or the environment.
Build stakeholder confidence: Demonstrate cybersecurity maturity to regulators, partners, insurers, and customers.
Engaging a CREST-accredited provider such as Cyberintelsys ensures ethical, standardized, and globally recognized testing practices tailored to U.S. industrial environments.
Cyberintelsys CREST-Accredited VA/PT Approach
Our IEC 62443 cybersecurity assessment methodology combines technical depth, regulatory alignment, and hands-on ICS/OT expertise.
1. Scoping & Asset Identification
Asset inventory and assessment scope documentation.
Identify ICS/OT assets including PLCs, HMIs, SCADA systems, RTUs, industrial IoT devices, sensors, and control networks.
Map data flows between OT layers, enterprise IT systems, remote access paths, and cloud or vendor connections.
Define safe testing boundaries to protect live industrial operations.
2. Vulnerability Assessment (VA)
Detailed vulnerability assessment report with severity ratings, CVSS scores, impact analysis, and remediation guidance.
ICS-aware scanning: Use OT-safe vulnerability scanners and threat intelligence aligned with U.S. and international advisories.
Configuration review: Assess access control, network segmentation, firewall rules, and security configurations.
Industrial protocol analysis: Evaluate protocols such as Modbus, DNP3, OPC, IEC 60870, and Ethernet/IP.
Firmware & software review: Identify outdated firmware, unpatched systems, and insecure software components.
3. Penetration Testing (PT)
Penetration testing report with proof-of-concept findings and risk demonstrations.
OT network penetration testing: Identify exploitable paths between IT and OT environments.
Control system testing: Safely simulate attacks on PLCs, HMIs, SCADA servers, and engineering workstations.
Remote access & wireless testing: Assess VPNs, remote maintenance tools, and industrial wireless networks.
Process impact simulation: Validate attack scenarios using controlled testing or lab-based simulations.
4. Risk Analysis & Prioritization
Assess vulnerabilities based on likelihood, safety impact, operational risk, and regulatory exposure.
Prioritize remediation aligned with production criticality and IEC 62443 risk management principles.
5. Reporting & Compliance Readiness
CREST-aligned, audit-ready reports suitable for internal governance, regulators, and client requirements.
IEC 62443 gap analysis and compliance mapping.
Cybersecurity improvement roadmap for continuous OT security maturity.
6. Retesting & Validation
Post-remediation validation testing to confirm risk mitigation.
Support ongoing IEC 62443 compliance and continuous improvement.
Methodology Overview
Reconnaissance: Identify industrial assets, communication paths, and trust boundaries.
Threat Modeling: Analyze attack vectors using MITRE ATT&CK for ICS and real-world threat scenarios.
Controlled Exploitation: Safely demonstrate vulnerabilities without impacting operations.
Post-Exploitation Analysis: Assess potential impact on production, safety, and system availability.
Reporting & Guidance: Deliver actionable remediation steps and compliance-aligned documentation.
Benefits of Cyberintelsys IEC 62443 VA/PT Services
IEC 62443 Compliance Readiness: Support compliance with IEC 62443-2-x, 3-x, and 4-x standards; provide verifiable evidence for audits and regulatory reviews.
Operational Resilience: Strengthen cybersecurity defenses while maintaining uptime; reduce the risk of production disruptions and safety incidents.
CREST-Accredited Expertise: Assessments conducted by certified ethical hackers with ICS/OT specialization; internationally recognized testing standards and methodologies.
Safety-Focused Security: Ensure cybersecurity controls align with industrial safety requirements; protect critical processes without introducing operational risk.
Continuous Cybersecurity Improvement: Integrate findings into secure lifecycle management; enable periodic assessments to address evolving threats.
Industries We Support in the United States
Energy & Utilities: Power generation, transmission, water and wastewater systems
Manufacturing & Automotive: Industrial automation, robotics, smart factories
Oil & Gas / Chemical: Process control, safety instrumented systems
Transportation & Logistics: Rail, ports, traffic control systems
Smart Infrastructure & Buildings: Building management systems, smart campuses
Why Choose Cyberintelsys in the United States?
CREST-accredited cybersecurity company with global ICS/OT expertise
Deep knowledge of IEC 62443, U.S. critical infrastructure security, and industrial regulations
OT-safe testing methodologies designed for live environments
Clear, actionable, and audit-ready reporting
Proven experience supporting regulated and safety-critical industries
Conclusion
As U.S. industrial environments become more interconnected, cybersecurity risks to ICS/OT systems continue to grow. Achieving IEC 62443 compliance is essential to protect critical infrastructure, ensure operational continuity, and meet regulatory expectations.
Cyberintelsys delivers IEC 62443 Vulnerability Assessment and Penetration Testing services that provide:
Comprehensive identification and validation of ICS/OT vulnerabilities
Compliance-ready documentation and remediation guidance
Security assessments designed to preserve operational safety
Confidence that industrial systems are resilient against modern cyber threats
Partner with Cyberintelsys to strengthen your ICS and OT cybersecurity posture, achieve IEC 62443 compliance readiness, and protect critical industrial operations across the United States.
