nerdexam
Isaca

CISA · Question #57

Which of the following is the GREATEST impact as a result of the ongoing deterioration of a detective control?

The correct answer is A. Increased number of false negatives in security logs. The greatest impact of a deteriorating detective control is an increased number of false negatives, meaning actual security events go undetected.

Submitted by takeshi77· Apr 18, 2026Protection of Information Assets

Question

Which of the following is the GREATEST impact as a result of the ongoing deterioration of a detective control?

Options

  • AIncreased number of false negatives in security logs
  • BDecreased effectiveness of root cause analysis
  • CDecreased overall recovery time
  • DIncreased demand for storage space for logs

How the community answered

(45 responses)
  • A
    80% (36)
  • B
    4% (2)
  • C
    4% (2)
  • D
    11% (5)

Why each option

The greatest impact of a deteriorating detective control is an increased number of false negatives, meaning actual security events go undetected.

AIncreased number of false negatives in security logsCorrect

The greatest impact of a deteriorating detective control is an increased number of false negatives, where actual security incidents or violations occur but are not detected or reported. This means the control is failing to identify issues it is designed to find, leading to undiscovered breaches and potential compromise.

BDecreased effectiveness of root cause analysis

While a lack of detection (due to false negatives) might eventually hinder root cause analysis, the immediate and direct impact of a *deteriorating detective control* is its failure to *detect*.

CDecreased overall recovery time

Decreased overall recovery time is an improvement, not an impact of a deteriorating control, which would likely increase recovery time due to delayed detection.

DIncreased demand for storage space for logs

Increased demand for storage space for logs is typically associated with *effective* logging, not the deterioration of a detective control, which might actually produce fewer relevant logs if it's failing.

Concept tested: Impact of detective control deterioration

Topics

#Detective Controls#Control Effectiveness#False Negatives#Security Monitoring

Community Discussion

No community discussion yet for this question.

Full CISA Practice