Securing PLCs in OT Environments: Practical Steps for Ops Teams
Programmable Logic Controllers (PLCs) form the foundation of operational technology (OT) environments, governing everything from assembly lines to critical infrastructure utilities. While traditionally isolated by air gaps, modern connectivity has exposed these assets to new risks. If compromised, a PLC can be manipulated to cause physical damage, safety hazards, and significant downtime. However, securing these devices does not always require deep firmware re-engineering or replacing entire fleets of hardware.