Into Cyber Resillience
A Risk-driven Approach To Securing Industrial Connectivity
Cyber resilience spans governance, processes, technology, and response capabilities. In connected OT environments, network security has become a critical enabler as industrial systems integrate with IT platforms, AI tools, remote services, and legacy assets, increasing the pathways through which cyber risks can propagate.
Standards such as IEC 62443 address these risks through segmentation, defining zones and conduits to enforce defense-in-depth. Secure networks therefore do not eliminate threats — they limit how far compromise can propagate.
Risk = Likelihood × Impact
While organisations may not always reduce threat probability, network architecture can significantly reduce operational impact. In OT environments, segmentation, controlled access, and containment are the most practical mitigation strategies.
To apply mitigation effectively, organisations must understand where risks exist across the OT network and deploy appropriate security solutions to maintain reliable industrial operations.
Understanding the Risk Landscape of Connected OT Networks
In connected OT networks, cyber risks do not originate from a single point; they can emerge from multiple layers of system networks. Identifying where these risks arise enables targeted mitigation and helps prevent threats from propagating across industrial operations.
Industrial networks often connect IT, OT, and external systems. Poor segmentation or access control can allow attacks to spread across operations.
Serial device servers and gateways connect legacy equipment to IP networks, potentially introducing new attack paths into OT environments.
WLANs expand connectivity but can increase the attack surface without proper access control and visibility.
Engineering workstations, HMIs, and SCADA systems can become entry points for malware, unauthorized access, or command manipulation.
Industrial devices and network infrastructure may be exposed to tampering or unauthorized physical access.
Harsh conditions such as heat, dust, moisture, or unstable power can affect network reliability and system availability.
Limited asset visibility and insufficient monitoring can delay incident detection and increase operational risk.
Simplify OT Network Risk Mitigation with Moxa
Identifying risks is only the beginning. Moxa solutions help organizations control those risks through secure networking technologies and hardened devices designed to prevent threats and manage vulnerabilities.
Accelerating IEC 62443-3-3 Certification with Moxa Cybersecurity Service Package
Moxa secure networking solutions are designed in alignment with IEC 62443, supporting secure architectures and device hardening in OT environments. As more industrial systems must meet IEC 62443-3-3 system-level requirements, the Moxa Cybersecurity Service Package (CSP) helps organizations prepare documentation and accelerate certification readiness.
IEC 62443-3-3 Certification Preparation Process
Service Audience
System integrators, machine builders, and asset owners preparing OT systems for IEC 62443-3-3 certification who need networking expertise and practical guidance
Service Scope
- IEC 62443-3-3 compliance documentation for Moxa products
- Security hardening guides for networking devices
- Customized technical training on industrial networking and secure configurations tailored to system requirements and cybersecurity standards.
Key Benefits of Moxa Cybersecurity Service Package
OT Network Security Expertise with 37+ Years of Experience
Simplified Documentation Preparation
Security Hardening Guidance
Customised Technical Training
Assistance with Validation Testing
Why Moxa for OT Network Security
Proven OT Networking Expertise
Decades of experience delivering reliable industrial connectivity and network infrastructure solutions for mission-critical OT environments.
IEC 62443-Aligned Security
Design Secure networking architectures and device hardening practices aligned with IEC 62443 cybersecurity principles.
End-to-End Support
From a wide range of industrial networking and connectivity solutions to technical support—including security hardening guidance, technical training, and IEC 62443-3-3 certification preparation through the Moxa Cybersecurity Service Package.