Digital technologies significantly simplify our daily lives, but at the same time, they are quite often subjected to cyberattacks, which puts our personal data in the electronic network at risk. About how the development of digital technologies creates new threats, what can ensure our protection in the digital space, as well as about artificial intelligence and cryptocurrencies, in an interview for the program "About Science. Competently" (host – academician Volodymyr Semynozhenko) for the YouTube channel of the National Academy of Sciences of Ukraine, spoke Professor of the Department of Mathematical Methods of Information Protection of the Physico-Technical Institute of NTU Ukraine "Kyiv Polytechnic Institute named after I. Sikorsky," Corresponding Member of the NAS of Ukraine Anton Kudin.