CyberCertPrepOT Security FundamentalsOT Fundamentals: Threat Landscape & Attack VectorsEASYFree question
Operators suddenly see frozen values and blank trends on every HMI while the plant itself keeps running. Which impact does this match?
- A.Operators lose the ability to drive the process
- B.Operators can no longer observe the process state
- C.Output drops while production costs rise
- D.Safety systems fail to act on a demand
Why B is correct
Frozen displays with a running plant mean the view of the process is gone, which ATT&CK for ICS calls Loss of View. Loss of control would show ignored commands, and loss of safety would involve protection failing on a demand.
Know someone studying for OT Security Fundamentals? Send them this one.