Report 10 Feb 2026

Securing OT Systems and Critical Infrastructures – InBrief Analysis

This report examines why protecting critical infrastructures requires a safety-first approach. OT security cannot simply copy IT methods, because patching and intrusive scanning are often constrained by operational risk.

Effective OT security starts with an asset inventory, visibility into key versions, and mapped IT-to-OT data flows. It then prioritizes segmentation, an industrial DMZ, and governed remote access, including MFA, approvals, and logging, to reduce the blast radius.

For sustained OT security, vulnerability handling is risk-based and uses compensating controls when patching is delayed. Monitoring should be largely passive, and incident response must include safety decision points, with regular exercises to ensure readiness.

 

Recommended advisory: PAC Leadership Session – Ransomware Readiness & Incident Response