Now You See It, Now You Don't: The Challenges of a Disappearing Network Perimeter

It may seem like Houdini is inside the network, because the perimeter as we have known it is disappearing. Conceptually, firewalls used to sit between the public Internet and the internal network with its servers, desktops and applications. There was a clear network perimeter separating internal resources from the outside world.

Source: http://ectnews.com.feedsportal.com/c/34520/f/632000/s/2113d579/l/0L0Stechnewsworld0N0Crsstory0C755610Bhtml/story01.htm

Stephanie Rice Meet the Pyro Karen Klein