The Purdue Security Model applies cybersecurity best practices to the Purdue Network Model, ensuring that industrial networks remain secure and protected from cyber threats. It provides a structured approach to securing IT and OT environments by enforcing network segmentation, access controls, and monitoring strategies.
One of the core principles of the Purdue Security Model is restricting communication between network layers, preventing unauthorized access to critical industrial control systems. Firewalls, data diodes, and zero-trust policies are commonly implemented to safeguard each level of the network from external and internal threats.
As cyber threats targeting industrial environments increase, many organizations are adapting the Purdue Security Model to include modern cybersecurity frameworks, such as ISA/IEC 62443 and Zero Trust Architecture. This evolution ensures that industrial facilities remain resilient against ransomware attacks, supply chain vulnerabilities, and other cybersecurity risks.