CIS Controls version 8.1 ICS Workbook

Published on March 3, 2026

The CIS Controls v8.1 ICS Workbook adapts the globally trusted CIS Critical Security Controls® for the unique demands of Industrial Control Systems and Operational Technology. ICS environments power critical infrastructure, but their specialized hardware, proprietary protocols, and strict uptime requirements make traditional IT security approaches difficult to apply. Many systems cannot support modern security tools, and even small configuration changes can disrupt operations or void vendor warranties.

The ICS Workbook bridges this gap by translating the CIS Controls into practical, risk‑aware actions tailored for industrial environments. It helps organizations strengthen cybersecurity while preserving safety, reliability, and operational continuity. Designed with input from ICS and OT experts, the workbook provides clear, actionable guidance to secure industrial automation systems without compromising the processes they support.

As of June 23, 2025, the MS-ISAC has introduced a fee-based membership. Any potential reference to no-cost MS-ISAC services no longer applies.