Nowdays social networks have an important role in all areas of the economy. They serve as a database, distribution channels and sources of information. The development of information technologies and their application in the business of the financial sector, as well as data management, significantly changed the operations of financial institutions. Internet banking is a classic example of the application of technological achievements that directly affected the daily life of the household sector, but also businesses. The use of new forms of information and communication technology came to life in the field of insurance and transport systems in the form of telematics and this contributed to better performance of the company. New methods of data processing and analysis, to come with the development, greatly influence the management of risks, business decision-making and selection of marketing strategies. With well-selected information and their quality implementation of the system, legal entities can diversify risk and increase profits. The very fact of the existence of large number of data and great features, entails some disadvantages and is in the usage of social networks and the Internet you need to worry about the protection of privacy and personal data.