Chapter 72

Intrusion Prevention and Detection Systems

Christopher Day     Terremark Worldwide, Miami, FL, United States

Abstract

With the increasing importance of information systems in today's complex and global economy, it has become mission and business critical to defend those information systems from attack and compromise by any number of adversaries. Intrusion prevention systems (IPSs) and intrusion detection systems (IDSs) are critical components in the defender's arsenal and take on a number of different forms. Formally, IDSs can be defined as “software or hardware systems that automate the process of monitoring the events occurring in a computer system or network, analyzing them for signs of security problems”. IPSs are those that actually ...

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