Someone tampers with wastewater chemical-dose setpoints in the historian, but the pumps still run. Which information-assurance property is hit first?
Select an answer to reveal the explanation.
Short Explanation
The pumps humming is not the same as the dose being honest. Tampered setpoints are an integrity hit on the process data — the numbers lie even while the motors keep spinning. Availability looking fine is how this one fools people.
Full Explanation
Integrity means civic process data is accurate and unaltered by unauthorized parties. Changing chemical-dose setpoints in the historian corrupts control data even if pumps continue to run, so availability can look healthy while integrity is already lost. Confidentiality would apply if the setpoints were disclosed, not merely altered, and setpoints are not automatically classified Secret. Notable dispositions and non-repudiation of Incident Review are not the information-assurance property of the OT data.