While threats to network and information security have existed since the dawn
of the information age, the complexity and scale of attacks have exploded in recent
years, presenting enterprises with daunting challenges as they struggle to defend
an increasingly vulnerable perimeter. With cyber crime now more lucrative, and far
less risky, than the illegal drug trafficking trade, it is hardly surprising that the level
of criminal talent devoted to the Internet has risen tremendously.
Consequently,threat levels and attack impact have skyrocketed. For example, in just a few years, Distributed Denial-of-Service (DDoS) attacks have jumped in size from dozens to hundreds of gigabits per second — a result of increasingly sophisticated malware and growing zombie armies.