IEC 62443-2-1 Cyber Security Program

IEC 62443-2-1 Cyber Security Program

Series 3 - Episode 4


In this episode of Cyber Brews, we dive into IEC 62443-2-1 Edition 2 and explore what the updated standard means for organisations building and managing cybersecurity programs within industrial and OT environments.


We discuss the difference between a Cybersecurity Management System (CSMS) and a broader Security Program (SP), why the terminology matters, and how the latest edition of the standard is evolving beyond traditional compliance thinking.


The episode also covers:

▪️ What the IEC 62443-2-1 security program is designed to achieve

▪️ The biggest changes introduced in Edition 2

▪️ How the standard impacts different stakeholders across industry

▪️ What engineers, site owners, OT teams, and process safety professionals should be thinking about moving forward


As industrial cyber security continues to mature, organisations are increasingly being asked to demonstrate not just technical controls, but governance, ownership, and long-term resilience.

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