
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.
Tenable.OT identifies unpatched firmware, open ports, and weak configurations and maps findings to IEC 62443, while Armis provides asset discovery, risk scoring, and automated enforcement for OT and IoT devices.
Prevent OT outages by enforcing a separate change management process: validate every patch in a test environment, schedule a maintenance window, and obtain OT engineer approval.
Mitigate alert fatigue by tuning OT detection tools: start with high confidence alerts, assign owners to every alert, implement suppression rules, then weekly tuning for the first month.
Secure remote access for OT systems relies on a jump server in the DMZ, multi-factor authentication, and session recording to prevent direct internet connections to PLC or SCADA.
Assess your IEC 62443 posture in one day by answering seven questions about prior requirements, identify gaps, and prioritize a 90-day action plan focused on authentication and segmentation.
Frame OT security as an insurance-like business case by quantifying the cost of one OT incident, downtime based on production value, the 60-day program, and the payback.
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.