OTs - Paiet/SEC-335 GitHub Wiki

Objectives:

What is OT
- Operational Technology
  - Managing, Monitoring, and Controlling industrial operations
    - Focused on the physical devices and processes they use
OT Components/Systems
- ICS (Industrial Control System)
- SCADA (Supervisory Control And Data Acquisition)
  - Gathers and presents data to operators
  - Make decisions about processes with the aid of operator input
  - Control plant functions based on those decisions
- DCS (Distributed Control System)
  - Like SCADA, but focused more on automation
- PLC (Programmable Logic Controller)
- RTU (Remote Terminal Unit)
  - aka Remote Telemetry Unit and Remote Telecontrol Unit
    - A 'beefed-up' PLC
      - Better environmental tolerances
      - Backup power options
      - Autonomy
- BPCS (Basic Process Control System)
- SIS (Safety Instrumented Systems)
  - Sensors, logic solvers, and final control elements
    - Protects personnel, equipment, and environment
      - Isolates the plant in case of an emergency
- HMI (Human Machine Interface)
  - Screen that allows a human to interact with a machine
    - Data input/output
      - Subset of SCADA
- IED (Intelligent Electronic Devices)
  - Devices that receive data from sensors and/or power equipment
    - Issue control commands like
      - Tripping breakers during voltage/current/frequency anomalies
        
        Example device: voltage regulator
- IIOT (Industrial Internet of Things)
  - The convergence of OT and IT
    - Using traditional IT infrastructure to manage OT devices
OT Security Challenges
- Plain Text Passwords/Protocols
- Complexity
- Proprietary tech
- Legacy Tech
- Lack of security professionals
- Converging with IT brings in IT Security issues