What is generally the very first core task required when beginning the day-to-day hardening of an OT environment?
Answer
Asset Inventory and Risk Assessment.
Before any security controls can be effectively implemented or prioritized, professionals must first comprehensively catalog all OT devices, document their software versions, map connections, and determine their criticality to the overall business process.
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Getting Started in Industrial (ICS/OT) Cyber Security - YouTube
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