As the main engine of social development, education must adapt its new technological advancements to the benefit of the citizens and their needs by taking into account the building of a modern society that is based on knowledge. Computer technology becomes the most appropriate technical support, given the new challenges of the knowledge society. Within this context, the social informatics takes on new dimensions. Nowadays, information security is strongly connected to the investigation area of social informatics. Knowledge society and social informatics are being addressed in the paper in the first two parts. Information security in the contemporary society, within the context of building the knowledge society, is addressed in part three. In the fourth part, we propose the creation of an educational framework for the safe use of online virtual environment. Its purpose is primarily the awareness of the importance of security systems, taking into consideration the new challenges of social informatics in the modern society.