The intent is to provide a high-level overview of the most effective and prevalent methodologies, not an exhaustive analysis of features by each vendor, as these vary by category. This should be a starting point to guide you to where you need to dig deeper into cybersecurity solutions for your OT network.

• Perimeter Firewalls between IT and OT
• Network IDS/Anomaly Detection
• Configuration Change Management
• Remote Access
• Data Diodes
• Vulnerability Management
• Security Operations Center/Threat Hunting
• Traditional Network Segmentation
• Network Micro-Segmentation: Using Software-Defined Networking