[BOOT_SEQ] INITIALIZING SECURE TERMINAL SESSION...
[KERNEL] OT_CYBER_PHYSICAL_CORE v4.19-SECURE
[IDENTITY] OPERATOR : Faisal Alnumani // HANDLE: 0xf9o
[ROLE] OPERATIONAL TECHNOLOGY (OT) SECURITY ENGINEER
[STATUS] MONITORING INDUSTRIAL CONTROL NETWORKS: ACTIVE
[SECURITY] INTEGRITY VERIFIED // SHA-256: 0xf90...SECURED
[MANTRA]"In IT, we protect data. In OT, we protect human life, physical assets, and operations."
$ cat /etc/operator/background.logI started my career as a Mechanical Equipment Maintenance Technician. I spent years on the plant floor physically dismantling, repairing, and assembling heavy industrial machinery.
Today, I translate that hands-on physical experience into OT / ICS Cybersecurity.
In IT, a system failure stops screen output. In OT, a system failure damages turbines, bursts pipes, or harms plant operators. You cannot defend what you do not physically understand. My core strength is bridging heavy mechanical engineering with cyber resilience to keep critical infrastructure running safely.
$ ps aux --filter="operator=0xf9o"- Tool Engineering: Developing custom security CLI and GUI tools using
Go (Golang)andC# .NET. - ICS Protocol Analysis: Capturing, decoding, and parsing industrial field protocols (
Modbus TCP/RTU,DNP3,S7comm,EtherNet/IP). - Architecture Hardening: Designing segmented network boundaries and firewalls aligned with the
Purdue Model (PERA)andIEC 62443. - Physical-Cyber Risk Analysis: Mapping cyber attack vectors directly to mechanical failure modes in plant assets.
| [ ICS & OT Security ] | [ Threat & Defense ] | [ Engineering Base (AutoCAD, EPANET) ] | [ Dev & Infra (Go, C#, SQLite) ] |
|---|---|---|---|
| Purdue Model (PERA) | Network Segmentation | AutoCAD (P&ID Layouts) | Go (Golang) CLI Tools |
| IEC 62443 Standards | OT Threat Modeling | EPANET (Hydraulic Models) | C# .NET GUI Applications |
| Modbus, DNP3, S7comm | Packet Inspection (PCAP) | Mechanical Assembly & Teardown | SQLite & Embedded Storage |
| PLC & RTU Hardening | Attack Surface Reduction | Heavy Rotating Machinery | Linux / UNIX CLI Operations |
| SCADA / HMI Protection | Incident Response (OT) | Physical Failure Analysis | Git / Secure CI Workflows |
| Safety Systems (SIS) | Industrial Intrusion Detection | Hydraulic & Pneumatic Systems | Bash & PowerShell Automation |
$ netstat -tunap | grep ESTABLISHED- LinkedIn : faisal-alnumani
- X (Twitter) : @0xf9o
- HackTheBox : f9l
- TryHackMe : Fs9
[+] RUNTIME BUFFER FLUSHED
[+] FIELD CONTROLLERS MONITORED
[+] INDUSTRIAL ASSETS SECURED
[+] CONNECTION TERMINATED - LOGS SECURED