Implementing Zero Trust in Operational Technology (OT) Environments
Summary: Dragos describes Zero Trust as a shift from network-based security to an application- and data-centric model built on strong authentication, limited authorization, data protection, and session monitoring. The post states that OT environments run on an inherent trust model, rely on many legacy applications, require interoperability, and are sensitive networks, which makes Zero Trust elusive in OT and points instead to the SANS 5 Critical Controls for ICS Cybersecurity.
Key Takeaway: OT environments are built on the opposite assumption of Zero Trust - inherent trust - so a security leader cannot simply port a cloud-era access model onto systems that control physical processes without first accounting for legacy applications and interoperability requirements.
Read the original at Dragos Blog ↗
- Topics
- OT / ICS & Critical Infrastructure
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