What are Self-defending Networks?
The self-defending network is a new initiative created by Cisco for system security. The idea here is to get the network having the ability to defend itself so that threat mitigations can be more effective. As we know, sometimes the admin has to go to a certain website to know the latest virus outbreak or threat and then defend his/her network. Remember the case of Code Red or SQL Slammer where it spread in exponential time. Going to a certain forum or website to look for the latest outbreak, and then patching the network are simply ineffective. By the time we patch our network, chances are that some local users may already be infected. We need a more effective approach to defend our networks.