A company adopts an IDS system that yields a binary detection result (whether there is an intrusion or not), by observin
Posted: Sun May 15, 2022 1:31 pm
A company adopts an IDS system that yields a binary detection
result (whether there is an intrusion or not), by observing the
network traffic coming into this company. the false positive and
false negative rates of the IDS are both 6.0% (i.e., if there is no
intrusion, 6.0% of the time, the IDS detects intrusion, and if
there is an intrusion, 6.0% of the time, the IDS does not detect
it) The incidence rate of intrusion in this company is 0.1%.
Given that the IDS outputs positive (it detects an intrusion) for
one specific traffic instance, what are the odds (probability) that
there is actually an
intrusion happening?
result (whether there is an intrusion or not), by observing the
network traffic coming into this company. the false positive and
false negative rates of the IDS are both 6.0% (i.e., if there is no
intrusion, 6.0% of the time, the IDS detects intrusion, and if
there is an intrusion, 6.0% of the time, the IDS does not detect
it) The incidence rate of intrusion in this company is 0.1%.
Given that the IDS outputs positive (it detects an intrusion) for
one specific traffic instance, what are the odds (probability) that
there is actually an
intrusion happening?