The paper considers modern aspects of digitalization of the retail network companies. Retail networks are rapidly increasing the volume of digital services provided, introducing digital technologies into many business processes in order to increase their own competitiveness, speed up decision-making and develop new markets. Continuous development of digital technologies and consumer expectations regarding these technologies are the main prerequisites for digitalization of the retail. The article discusses the practice of using digital technologies, such as big data, e-commerce, and implementing omni-channel model for customer service. Big data is considered one of the key leading digital technologies in the retail sector, which includes geolocation analytics, video analytics, analysis and forecasting of demand for products. Not only the advantages of implementing digital technologies in the retail were emphasized in the article, but the problems associated with this process such as cyber attacks, personal data leaks, etc. were also paid special attention. Promising areas for research within the framework of this problem were formulated.