Hacking the Physical World

OT Security Lesson 1: Introduction to Operational Technology Cybersecurity

What is OT Security and why is it critical for the world’s infrastructure? In Lesson 1 of our Industrial Cybersecurity series, we break down the fundamentals of Operational Technology.

Operational Technology (OT) manages the physical processes in factories, power plants, and water treatment facilities. As these systems become more connected, the risk of cyberattacks grows. In this introductory lesson, we cover:

What is OT? Defining the hardware and software that controls physical systems.

IT vs. OT: Why the "CIA Triad" (Confidentiality, Integrity, Availability) changes in an industrial setting.

The Purdue Model: Understanding traditional network architecture for industrial control systems.

Real-World Impact: Why OT failure can lead to life-threatening consequences.

0:00 – Introduction to OT Security 01:30 – What exactly is Operational Technology? 03:45 – Key Differences: IT Security vs. OT Security 06:20 – Industrial Control Systems (ICS) Overview 09:00 – Introduction to the Purdue Model 12:30 – Why Security Matters in 2026

🔔 Subscribe to follow the full series and become an OT Security expert. 💬 Question of the Day: Which industrial sector do you think is most at risk from cyberattacks? Let us know in the comments!

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