The integration of digital knowledge and information technology into all economic sectors is driven by the digital revolution and Industry 4.0. They also emerge as the primary driver of economic advancement across different nations. The main research goal of this paper is to analyse how the Digital Development Level influences the National Cybersecurity Index across different countries, as well as to determine the average Digital Development Level and the average National Cybersecurity Index value for all countries. A quantitative approach was employed in this research, utilizing secondary data. The analysis included one-way ANOVA, linear regression, correlation, and descriptive statistics. The study found a positive correlation between the Digital Development Level (DDL) and the National Cybersecurity Index (NCSI), as well as significant disparities between these variables. Qualitative factors, such as government policies, organizational culture, or international cooperation, are not accounted for in the analysis. Research results highlight the need for continued investments in both areas and underscore the importance of integrated policy approaches that address the complex challenges of the digital economy.