The rapid development of technology and the increased sharing of content via the Internet have given rise to the issue of digital footprints, which directly affects users around the world. Due to public availability, open source data was over time noticed as an opportunity for intelligence reporting. The OSINT discipline deals with the collection and analysis of data from open sources and numerous successfully conducted researches around the world have already shown the possibility of obtaining various knowledge based on such data. OSINT is used in cyber defense, fighting against crime, analysis of individuals and malicious groups, as well as for many other business, government and private purposes. The primary goal of the paper is to explain the process of collecting digital footprints in a theoretical and practical way and to send a warning about various dangers that are linked with excessive online sharing of personal content with the rest of the world. Since a lot of people are using the Internet every day, an OSINT analysis was conducted on the digital footprints of a chosen celebrity so that the practical usage of digital footprints in reality can be shown. A free version of the Maltego software tool is used for analysis of digital footprints and all of the collected data is related to the celebrity's identity and its profession, persons contact information as well as contact information of its associates, data of business collaborations and social networks connections. Except the chosen celebrity, some other individuals relevant to the investigation are also included in the analysis.