The all area of security can be hot issue of computer and technology. In the past years, network and Internet technology can be used in various area, and many people want to get information whatever they want via the Internet. However the persons are still not trust the technology and method what the technique can prevent any attack from unauthorized. In this paper, we propose the relational model for network security. For this research, we use topic model to consider interrelation with the topic of security characteristics.