A wastewater-process question is whether anyone used the jump host and then changed a pump setpoint through the industrial firewall. Which sources are useful?
Select an answer to reveal the explanation.
Short Explanation
OT questions need OT-adjacent cameras: the historian, the jump-host door, and the industrial firewall. Library Wi-Fi is a different building. 311 tickets and parks calendars will not show a setpoint write.
Full Explanation
Useful data sources for a process-control question sit next to the process: historian or engineering-workstation records for the setpoint, jump-host authentication for who entered the OT path, and the industrial firewall for the network hop. Library Wi-Fi, CMS, and 311 systems are civic sources, but they are not OT-adjacent and will not answer who changed the pump. Domain 3.1 requires matching sources to the environment under investigation.