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An intrusion has taken place at a company, but the Intrusion Detection System did not detect that anything was wrong, allowing the attack to go unnoticed. This failure is an example of
False Negative
Failure to Launch (FTL)
System Bypass
False Positive
A false negative is characterized by the Intrusion Detection System (IDS) detecting a negative (i.e. a lack of an attack) when it should have detected a positive (an attack).
~~EDIT: the attack was present, so it should be 'Positive' while it was not detected (False) hence False Positive. Currently the 'correct' answer is set to False Negative, this is correct if the case was that the attack did not took place. ~~
Edit: The attack happened because is WASN'T noticed, thus a FALSE (wrong) NEGATIVE (lack of alert). False positive would be legitimate traffic detected as malicious (alerting on benign traffic).
edit 26/3/18 this question is an example of it not being detected, negative, but it was actually an attack so it was falsely negative. a false positive as stated above would be if it was NOT an attack but was detected by the system as an attack. why is this not fixed?
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