Digital transformation of business and cyber security have recently caused great interest, not only in business and political circles, but also among scientists and researchers. In recent years digital technology has dramatically changed, redesigned and accelerated the way of doing business, education, entertainment, public sector, and other segments of society. Configuration and scope of changes, along with inevitable disruption, take place at three levels: individual, organizational and social level. With its direct impact on the consciousness, ideas, behavior and change of paradigm, focus and the manner of business, digital transformation has undoubtedly led to the creation and expansion of digital economy, as a brand new and unknown model of business. With the development of new business models and modes of business, disruptive technologies have become a great challenge and a kind of threat to the digital business model itself in the complex global environment. This is due to the unlimited possibilities of abuse of technologies and their weaknesses. More precisely, there is an obvious imbalance between the very rapid development of technological innovations and their implementation, on the one hand, and accompanying protection and security challenges, on the other.