Modern manufacturing organizations are transforming their factories by introducing smart robots, IoT sensors, cloud-based analytics, and digital twins to improve efficiency, reduce downtime, and enable continuous production. However, this increased connectivity also expands the operational technology (OT) attack surface. Once attackers gain access, the potential impact is significant due to flat network architectures, outdated operating systems, and limited visibility within OT environments. As a result, securing modern factories requires a new approach to OT security. Applying Zero Trust principles to the Purdue Model helps organizations reduce risk, improve visibility, and better protect industrial systems while supporting ongoing digital transformation in manufacturing environments.

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