Steps to Segregate IT and OT Networks across Organization
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Segregating IT and OT networks is critical for ensuring the security and reliability of industrial operations. This process involves creating definitive air gaps and protocol breakers to eliminate unauthorized communication while allowing necessary protocols for Industrial Automation and Control Systems (IACS). Key steps include:
- Asset Identification: Classify assets into people, processes, and technology to ensure accurate risk assessment.
- Zoning the Assets: Group assets into zones based on risk, criticality, or location. Establish conduits for secure communication.
- Risk Assessment: Use standards like IEC 62443 to analyze threats, vulnerabilities, and impacts.
- Security Levels & Protocol Segregation: Define security levels for different zones and use unidirectional gateways to restrict communication.
- Product Identification: Choose robust security products, like those from Waterfall Security Solutions, to enforce air gaps.
- Installation & Testing: Conduct thorough testing, including Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT).
- Operations & Maintenance: Implement ongoing training, monitoring, incident handling, and disaster recovery planning.
Waterfall Security Solutions’ HERA® technology is highlighted for enabling secure remote access to OT networks, mitigating risks from external connectivity.
Download this PDF for comprehensive guidelines.
