The technological possibilities in the IT and telecommunications influence the business models used by enterprises as well as the methods used by the public administration. In particular, this applies to the development of mass data processing applications, usually referred to as big data. The collection and processing of personal data are one of the primary applications of such methods. It has significant social consequences when it comes to changing the view on privacy.

https://www.cybersecurity-insiders.com/what-are-the-biggest-privacy-issues-associated-with-big-data/