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5
Intrusion Detection Systems
for Critical Infrastructure
Bernardi Pranggono, Kieran McLaughlin,
Yi Yang, and Sakir Sezer
The art of war teaches us to rely not on the likelihood of the enemy’s not coming, but on our
own readiness to receive him; not on the chance of his not attacking, but rather on the fact that
we have made our position unassailable.
—The Art of War, Sun Tzu
5.1 INTRODUCTION
According to Bace and Mell [1], the intrusion is an attempt to compromise computer security poli-
cies, i.e., condentiality, integrity, and availability (CIA), or to bypass the security mechanisms of
a computer or network. Accurate intrusion detection and ...