Introduction of computers in all spheres of life substantially changed the ways of how people communicate and exchange information. It is creating a virtually paperless work environment. Also we can now send a message very easily to anywhere in the world in seconds. Internet and its penetration into the so-called cyberspace puts users at cyber space requirements for information security, ICT security and, finally, cyber security for survival in this cyber space. Most countries in the world developing their own centres dealing with cyber security such as a national security authority, the approach of Czech Republic will be discussed.Zavedením počítačů do všech sfér života změnilo způsob jak si lidé vyměňují ínformace a jak komunikují. Je vyt...