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OT Cybersecurity Crash Course: IEC 62443, SCADA & PLC
Hot & New
New
Rating: 4.3 out of 5(9 ratings)
40 students

OT Cybersecurity Crash Course: IEC 62443, SCADA & PLC

55-minute field guide — Purdue Model, IEC 62443, threat landscape, Claroty & Nozomi for OT engineers & plant teams
Last updated 5/2026
English

What you'll learn

  • Identify every attack surface in your OT network and map all connections before any attacker does — using free tools that take 2 hours to run
  • Build the three-layer architecture that blocks 80% of OT attacks — industrial DMZ, network segmentation, and data diode — without a large budget
  • Evaluate, compare and select the right OT security tools — Nozomi, Dragos, Fortinet, Claroty, Tenable — matched to your plant size and budget.
  • aunch a 60-day OT security programme with a one-page policy, IEC 62443 self-assessment, incident response plan, and vendor evaluation framework
  • Defend your plant against ransomware, supply chain attacks, insider threats and IT/OT convergence failures using concepts built for plant engineers.
  • Present a compelling OT security business case to your plant head — in production uptime language, not cybersecurity jargon, with a clear ROI calculation.

Course content

8 sections43 lectures59m total length
  • You Are Now Responsible. Here Is What That Means1:22
  • The Availability-First Rule0:47
  • The Air-Gap Myth1:10

    Challenge the air-gap myth by recognizing a historian, VPNs, and cloud data flows; map and verify how your OT and IT networks actually connect.

  • IT Tools That Break OT Systems1:21
  • What Attackers Actually Want1:17
  • The 20-Minute Exposure Assessment1:03
  • QUIZ — Section 1: Why OT Security Is Different
  • Your Plant's 20-Minute Exposure Assessment

Requirements

  • No cybersecurity background required. If you work on or manage a manufacturing plant floor — you already have everything this course needs from you.

Description

This 55-minute crash course gives plant engineers and OT teams a practical field guide to OT security — covering IEC 62443, SCADA and PLC protection, Purdue Model, threat landscape and named tools including Claroty, Nozomi and Dragos. No cybersecurity background required.

Most OT security courses take 6–8 hours and still leave you without a plan. This course takes 55 minutes. You leave with a 60-day action plan, a tool comparison, and a one-page security policy your plant head will sign.

Most manufacturing plants are connected to the internet. Most plant engineers have no cybersecurity training. This course closes that gap.

OT Cybersecurity for Plant Engineers is built entirely for people who run production floors — not for IT security professionals. Every concept is explained through analogies your maintenance supervisor would understand. Every tool recommendation is matched to plant size and budget. Every section ends with one action you can take before the next lecture starts.


WHAT YOU WILL LEARN

You will learn why OT security is fundamentally different from IT security — and why applying IT tools and IT thinking to your plant

floor creates more risk than it removes.

You will learn how to map your complete OT attack surface using free tools, identify every unknown device on your network, and audit every remote access credential that was ever created.

You will learn how to build the three-layer architecture that blocks 80% of OT attacks: the industrial DMZ, network segmentation using OT-aware firewalls, and data diode isolation for your most critical assets.


You will learn how the four most common OT threats actually work — ransomware that targets production continuity, supply chain attacks that arrive through trusted vendors, IT/OT convergence traps, and insider threats caused by accounts nobody revoked.


You will learn how to evaluate, compare and select OT security tools including Nozomi Networks, Dragos, Claroty, Fortinet FortiGate OT, TXOne Networks, Tenable OT Security, CyberArk, BeyondTrust, and GRASSMARLIN — with honest comparisons of strengths, limitations, and which tool fits which plant size and budget.


You will learn IEC 62443 — the global OT security standard — in plain language. Seven requirements. No jargon. A one-day self-assessment you can run without an external consultant.


You will leave with a 60-day launch plan, a one-page OT security policy your plant head will actually sign, an incident response

sequence, and a business case framework that speaks production uptime, not cybersecurity.


WHO THIS COURSE IS FOR


This course is for plant engineers, OT leads, maintenance managers, and production supervisors who became responsible for cybersecurity the moment their factory floor connected to a cloud platform, a historian, or a vendor VPN.

It is also for automation engineers and system integrators implementing IIoT, Digital Twin, or OT connectivity programmes who need to understand the security consequences of every connection they add — and how to evaluate tools like Claroty, Nozomi Networks, Dragos, and Fortinet within a structured IEC 62443 framework.

If you are preparing for ISA/IEC 62443 certification or looking for practical OT security knowledge that complements SANS ICS courses like ICS 410 and ICS 515 — this course gives you the plant floor implementation perspective that certification curricula do not cover.

No cybersecurity background required. No IT degree required. If you work on or around a manufacturing plant floor, you are ready for this course.


WHY THIS COURSE IS DIFFERENT


Every other OT security course on this platform was written by a cybersecurity professional explaining factories to IT people. This

course was written by a manufacturing professional explaining cybersecurity to plant engineers. The student who benefits is the

person standing on the production floor — not the person in the server room.


42 lectures. Under 3 hours total. No lecture longer than 6 minutes. One clear takeaway per lecture. Concepts taught through analogies. Tools compared honestly. One action item per section.

Who this course is for:

  • This course is for plant engineers, OT leads, maintenance managers, and production supervisors who are now responsible for cybersecurity because their factory floor is connected — and have no IT security background to draw on. It is also for industrial automation engineers implementing IIoT or digital twin programmes who need to understand the security implications of every connection they add. It is not for IT security professionals learning about factories — every concept, every analogy, and every tool recommendation is written from the production floor outward, not from the server room inward.