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Home / Sectors / WATER

Water & Wastewater

One operator on nights, a flat SCADA network and a chemical feed that answers to a PLC. Water is the sector where a cyber event becomes a public health event fastest.

The exposure

Public health runs on a flat network.

Most utilities have radio-linked lift stations, an HMI that doubles as the engineering workstation, and integrator remote access that has never been turned off. Chemical dosing sits one hop away.

AWIA §2013EPA · CISA guidanceState PUC
■Chemical feed and disinfection setpoint protection
■Radio and cellular telemetry to remote sites
■Risk and resilience assessment and ERP alignment
Typical topologyExposed path
L3.5 · DMZReporting server
VENDOR VPN
L2 · HMIOperator HMI
L2 · SCADAPlant SCADA
L2 · HISTORIANHistorian
L1 · PLCTreatment PLC
L1 · RTULift station RTU
L1 · SAFETYChlorine safety
L0 · PROCESSIntake · clarifier · chemical feed · pumps

Where we start

Recommended engagements for water and wastewater utilities.

OT Cyber AuditA site-level assessment of control system exposure, ranked by consequence.
OT Network ArchitectingSegmented control networks designed and built to keep the process running.

Get in touch

Talk to an OT security engineer.

Engineer at a membrane skid control panel