The only system which is truly secure is one which is switched off and unplugged, locked in a titanium lined safe, buried in a concrete bunker, and is surrounded by nerve gas and very highly paid armed guards. Even then, I wouldn’t stake my life on it….An open security model is the easiest to implement .
Simple passwords and server security become the foundation of this model.
If encryption is used, it is implemented by individual users or on servers.
SAFE is a comprehensive, robust security blueprint based on Cisco AVVID (Architecture for Voice, Video and Integrated
Data). The SAFE blueprint consists of modules that address the distinct requirements of each network area. By adopting a
SAFE blueprint, security managers do not need to redesign the entire security architecture each time a new service is added
to the network.With modular templates, securing each new service as it is needed and integrating it with the overall security
architecture is easier and more cost effective.