Cisco Systems announced the next phase of its Self-Defending Network security strategy. Earlier phases of its strategy focused on the need for integrated IP security and the network admission control (NAC) initiative. This next phase, called Adaptive Threat Defense (ATD), aims to further minimize network security risks by dynamically addressing threats at multiple layers, enabling tighter control of network traffic, endpoints, users, and applications. ATD also aims to simplify architectural designs and lower operational costs by combining security...