Zero Networks Compliance with ISA/IEC 62443-3-3

This compliance guide outlines how Zero Networks supports adherence to the ISA/IEC 62443-3-3 standards, which focus on system-level cybersecurity requirements for Industrial Automation and Control Systems (IACS). The document details the implementation of a zero trust model in operational technology (OT) environments through automated microsegmentation, identity-based access control, and just-in-time remote access. It describes foundational security requirements such as least privilege access, secure remote access, and network segmentation, which are essential for minimizing attack surfaces. The guide explains how Zero Networks addresses specific system requirements outlined in the ISA/IEC 62443 framework, including user authentication, access control, and audit log generation. Additionally, it presents the importance of maintaining comprehensive logs for access requests and policy modifications, which can be integrated with Security Information and Event Management (SIEM) systems for compliance auditing. Overall, the document serves as a resource for organizations looking to enhance their cybersecurity posture in alignment with recognized standards.