Historically IT organizations focused heavily on perimeter network security to protect their networks from cyber attacks. Protection at the perimeter edge works well for data moving toward the protected assets. However, recent breaches have shown that perimeter security alone isn’t sufficient to combat advanced persistent threats. With the advent of bring your own device (BYOD), cloud and the Internet of Things (IoT), data no longer resides only on key servers, and access to the network is no longer granted in a restricted fashion.