Question 450
When validating a security detection workflow, the team notes: A detection engineer assigns a MITRE technique label to an event handler and expects matching attack events without creating log rules. Which ongoing operational control best reduces the risk of recurrence?
Explanation
Correct Answer
This safeguard directly addresses mitre technique metadata does not trigger detection: Review both detection logic and ATT&CK labels during rule quality audits. The risk being prevented is: MITRE taxonomy metadata classifies a rule but does not itself define log matching conditions or event thresholds. A safeguard aimed at another fault would not control this issue.
Incorrect Answers
Views depend on event classification and saved filtering; event existence alone does not guarantee inclusion in every dashboard. “Validate event routing to each operational queue when custom handlers change” would remedy that alternative situation, but it would not correct the present issue: MITRE taxonomy metadata classifies a rule but does not itself define log matching conditions or event thresholds.
“Maintain expiring scanner exceptions tied to documented test windows and asset identity” is the supported response when known scanner behavior explains selected detections but does not justify removing detection coverage network-wide. Here the decisive response is “Review both detection logic and ATT&CK labels during rule quality audits”, so that different intervention does not meet the stated requirement.
The event engine evaluates its selected ADOM and log sources; cross-domain data does not appear by assumption. “Test handler data selection against current source-to-ADOM inventory before enablement” applies to that other condition. The reported evidence is a detection engineer assigns a MITRE technique label to an event handler and expects matching attack events without creating log rules; this alternative would address the wrong dependency.