Back to updates Updates · Updated Jan 2026

10. OT/ICS & IoT Attacks on Operational Systems

Medium

As IT and OT increasingly converge, the opportunities grow for ransomware, remote access abuse and geopolitically motivated disruption. IoT botnets also increase the scale of DDoS attacks.

Typical signals

  • Unknown remote tooling (RMM/RAS) on OT jump hosts
  • Abnormal PLC/SCADA commands or config changes
  • Unexplained segment-bridging between IT and OT

Current-state check

  • Segmentation (zones/conduits), allowlisting, asset discovery
  • Patch/compensating controls on legacy; monitor remote access strictly
  • Exercise "safety" impact scenarios and recovery procedures
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