The aim of information security is to ensure that electronic services provided by public administration as well as businesses are safe and credible for all citizens. Today, the main threat is organised crime related to illegal obtaining of information. This category includes also the threat of cyber terrorism. The priority as well as the obligation of every state is to protect information against its misuse and to eliminate consequences in the most possible scope. This assignment contains management and supervision of public administration as well as municipalities and business sector related to other state systems.