The study analyzes the main features of the use of digital technologies in the financial and banking sector at the international level. In the paper, we can conclude: the customer's digital identifier is the main attribute when using technology platforms in the banking sector; the norms on personal data protection and information security requirements should apply to the customer's digital identifier; since the digital identifier is analogous to a passport, we can say that the digital identifier can contain more information about an individual and allows to participate in digital civil turnover. The study proposes a method for assessing the degree of digitization of banks by the level of automation of key processes; by the number of online services provided; by the speed of transactions; by the availability of online services around the clock; by the range of digital technologies used; by the volume of online sales and the volume of transactions carried out using digital technologies (pp.61-67).