Welcome to the XXIII International Scientific and Practical Conference "Information Technologies and Security" (ITS-2023). The conference will be held on 30 November 2023 at the Institute for Information Recording of National Academy of Sciences of Ukraine, 2, M. Shpak str., Kyiv, Ukraine. Discussion will focus on the relevant issues of information security, analytics, risk management and decision-making support. We invite representatives of academia, higher educational institutions, government bodies and business to participate in the conference.