Five Critical Controls
Summary: Dragos describes the SANS ICS 5 Critical Controls, which start with ICS-specific incident response plans and proceed through defensible architecture, network monitoring, secure remote access, and vulnerability management tailored to industrial environments. Full implementation typically takes 12-18 months, with Controls #1 and #3 showing benefits within 90 days, and organizations typically see a 15-25% reduction in incident response time and 40-60% improvement in OT asset visibility in the first year.
Key Takeaway: The source states that cost avoidance from prevented incidents often exceeds implementation investment within 18-24 months, but also names operations team resistance to system disruptions and lack of OT security expertise among IT staff as the challenges standing in the way.
Read the original at Dragos Blog ↗
- Topics
- OT / ICS & Critical Infrastructure
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