A recent security audit revealed that there were indeed several occasions that the company’s network was breached. After investigating, you discover that your IDS is not configured properly and therefore is unable to trigger alarms when needed. What type of alert is the IDS giving?
A. True Positive
B. False Negative
C. False Positive
D. False Positive
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B…
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The audit revealed an attack happened, but it didn’t say anything about the IDS.
(it is configured improperly)
it gives a False Negative, which means it is not (false) giving an intruder alarm (positive alarm)
taking the info described above
the only option is B
C. FALSE NEGATIVE, In Computing it is an error by which the antivirus (This case the IDS) software fails to detect a file or area of the system that is really infected.
https://en.wikipedia.org/wiki/Type_I_and_type_II_errors#Type_II_error
C. False Positive (No attack happened, but alarm generated)
Correction : B. False Negative(Attack happened, but No alarm generated)
A breach and an alert was not triggered is a False Negative.