Digital economy, according to the documents of the Ministry of Communications of Russia has a significant potential in improving economic development of the state, increasing the efficiency of all sectors of economy, and improving the quality of life for citizens.

In everyday life, digital technologies lead to such innovations as big data in Internet banking, Cloud Computing in servicing retail customers, Internet of Things in everyday life.

Main question of using big Data in business is how to get business information from data lake that allows one to implement competitive advantage for business.

European participants of financial market actively utilize technologies of big data with strong regulation and unification.

The requirements of the GDPR (General rules for the protection of EU data) are much stronger than the requirements of Russian legislation (Federal Law "On Personal Data" of July 27, 2006 N 152-FZ.

The economy of open banking APIs includes a directive on payment services, Part Two (PSD2), which entered into force on the territory of the EU countries in January 2016. This directive deprives banks of monopoly on managing clients' money - now the provision of an open API (application programming interface) should turn for banks from voluntary right into a duty. Customers will be able to choose third-party innovative interfaces for accounts opened even in the oldest, conservative credit institutions. The focus on API creation projects forms risks for banks from the emerging fintech players.

The GDPR (General Data Protection Regulation) is the replacement of Data Protection Directive, officially Directive 94/46 / EC on protection of individuals with regard to the processing of personal data and on the free movement of such data.

In United States, NIST requirements for the protection of personal data are not weaker.