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Over 70,000 people have watched Mike Holcomb’s free 25-hour YouTube course on OT/ICS (Operational Technology/Industrial Control Systems) Cybersecurity, and over 1,000 have taken it live. The course covers critical topics for securing industrial systems, including network architecture, threat management, and penetration testing.
https://www.youtube.com/@utilsec
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Course Sections:
1. to ICS/OT Cyber Security
2. ICS/OT Cyber Security Overview
3. Control Systems & Protocols
4. Secure Network Architecture
5. Asset Registers & Control Systems Inventory
6. Threat & Vulnerability Management
7. OSINT for Industrial Controls
8. Incident Detection & Response
9. Industry Standards & Regulations
10. to ICS/OT Penetration Testing
11. Review Questions (200+)
You Should Know: Essential OT/ICS Cybersecurity Commands & Practices
1. Network Scanning & Asset Discovery
nmap -sV -Pn -p 1-1024 --script vuln 192.168.1.1 Scan for ICS devices masscan -p1-65535 10.0.0.0/24 --rate=1000 Fast industrial network scan
2. Modbus Protocol Interaction
python3 -m pip install pymodbus modbus-cli read --host 192.168.1.10 --port 502 --unit 1 --address 0 --count 10
3. ICS-Specific Vulnerability Checks
Using Metasploit for PLC exploits msfconsole use exploit/windows/scada/ge_proficy_cimplicity set RHOSTS 192.168.1.20 exploit
4. Log Analysis for OT Systems
grep -i "unauthorized access" /var/log/syslog Check for breaches journalctl -u scada-service --no-pager | grep "failed"
5. Securing ICS Networks with Firewalls
Linux iptables rule to block unauthorized SCADA traffic iptables -A INPUT -p tcp --dport 502 -s 192.168.1.0/24 -j ACCEPT iptables -A INPUT -p tcp --dport 502 -j DROP
6. Detecting Malicious ICS Traffic
Use Suricata IDS for industrial protocols suricata -c /etc/suricata/suricata.yaml -i eth0
7. Windows ICS Hardening
Disable unnecessary services in Windows-based ICS Stop-Service -Name "WinRM" -Force Set-Service -Name "WinRM" -StartupType Disabled
What Undercode Say
OT/ICS cybersecurity is critical as industrial systems are increasingly targeted by ransomware and state-sponsored attacks. Hands-on training, like Mike Holcomb’s course, bridges the gap between IT and OT security. Practicing with real ICS protocols (Modbus, DNP3) and hardening industrial networks reduces attack surfaces.
Expected Output:
✅ Skill Development: Master ICS security fundamentals.
✅ Hands-on Practice: Use real commands for asset discovery and defense.
✅ Career Growth: OT cybersecurity professionals are in high demand.
https://www.youtube.com/@utilsec
Prediction
With increasing OT/ICS cyberattacks, demand for skilled professionals will surge by 40% in 2026. Early training ensures readiness for critical infrastructure defense roles.
IT/Security Reporter URL:
Reported By: Https: – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
