**Author details**

Aikaterini-Georgia Mavroeidi, Angeliki Kitsiou and Christos Kalloniatis\* Privacy Engineering and Social Informatics Laboratory, Department of Cultural Technology and Communication, University of the Aegean, Mytilene, Lesvos Island, Greece

\*Address all correspondence to: chkallon@aegean.gr

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
