Big data, as part of the critical infrastructure

The amount of information and the need for information is fast increasing today, and it will further multiply in the coming years. The critical infrastructure ensures the welfare of the state and its citizens. Everyday decision-making requires a large amount of information of various types. The present publication will show the relationship between the critical infrastructure and Big Data. The emergence and use of Big Data have been greatly emphasized in recent years. The present publication will present the conceptual and practical manifestations of the Big Data phenomenon. The history of Big Data will also be discussed, as well as the conditions and possibilities of its applications, which will serve for the next period of economic growth. It will also present the Digital National Development Program, funded by the Government of Hungary and the European Union to increase the welfare of the Hungarian society and to make Big Data a digital service that is easier to access for everyone. Furthermore, it will examine the security and risk factors of Big Data, which is essential to ensure the effective protection of the critical infrastructure and personal data.