In recent years, sensors have come on the market to monitor the security of Operational Technology (OT) systems. A previous market survey, identified a new category of OT security sensors, characterized by two capabilities. The first is flow whitelisting. The systems can make a map of normal network traffic and report any deviations from it. The second is OT deep-packet inspection. The systems can parse OT communication protocols looking for unusual message types or parameters.
This report present the results of a market survey of this new category of OT Security Sensors. The market survey found five such system with a track record in the electricity sector:
- Security Matters – Silent Defense
- Nozomi Networks – SCADA Guardian
- Cyberbit – SCADAShield
- CyberX – XSense
- Rhebo – Rhebo Industrial Protector