The article studies the development of digital technologies in the global economy. It is determined that central bank digital currencies open up new opportunities in improving the efficiency of payment systems, reducing the cost of transactions in e-commerce, and increasing the level of financial inclusion. It has been found that the introduction of central bank digital currencies (CBDCs) may affect the deposit base of banks, potentially leading to increased costs and changes in their business models. However, beyond simple costs, a CBDC could also negatively impact the stability of the banking sector by expanding direct access to central bank liabilities, providing a public substitute for bank deposits, and altering bank business models. In general, competition for bank deposits from CBDCs may alter the architecture of the financial system, displacing the class of private debt, forcing banks to rely on alternative sources of financing, and possibly making the banking sector more vulnerable. The trilemma, which illustrates the fundamental principles of trade faced by central banks in managing CBDCs, has been analysed, demonstrating the complexity of balancing them in response to changes in financial technologies and economic expectations. According to Schilling, this trilemma asserts that a central bank managing a CBDC can achieve at most two of the following three objectives: financial stability, efficiency (optimal distribution of risks), or price stability. Choosing one of these objectives will inevitably lead to the sacrifice of at least one of the other two. It is concluded that digital central bank currencies are a new frontier in international monetary relations that can significantly change the way countries conduct cross-border trade, monetary policy, and financial cooperation. The impact of CBDCs on the financial sector can have far-reaching consequences, both positive and potentially negative. On the one hand, CBDCs promise to revolutionise the financial sector by improving the efficiency of payment systems, reducing transaction costs, and promoting greater financial inclusion. On the other hand, they can negatively impact the stability of the current financial system.