[The Internet and its security].

Internet, is the greatest world net by by means of which nowadays the planet communicates, rapidly goes forward. The last years of the university in USA the commonly develop the more progressive concept of the net (Internet 2), thanks to the constant growing technologies, with the goal to answer the needs of the scientific and the educational institutions, but also the commercial institutions and the organizations. Almost the there is no more significant institution in the world which has not developed their web pages and data bases with the most actual contents available to the wider circle of the users.