The Work that Never Makes the Highlight Reel: MTSA's Routine Maintenance Requirement
Summary: This fifth post in Dragos's MTSA cybersecurity series covers the regulation's routine maintenance requirement, which it breaks into six areas: identifying vulnerabilities, sharing risk, fixing and mitigating issues, configuration management, reducing exposure, and access reviews and logging. The post states that MTSA requires owners and operators to apply patches or implement and document compensating controls for all Known Exploited Vulnerabilities in critical IT and OT systems immediately, and that OT scanning must be carefully planned because active scanning can crash legacy devices.
Why it matters: The post is blunt that a plan to patch is not a compensating control, and that leaving vulnerable control systems unprotected is an open gangway when uptime is critical to safety. It also notes Dragos has found internet-facing OT systems at facilities whose operators were genuinely unaware they were exposed.
Read the original at Dragos Blog ↗
- Topics
- OT / ICS & Critical Infrastructure
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