Ruiz Vicente, Carmen1; Freni, Dario6; Bettini, Claudio6; Jensen, Christian Søndergaard1
1 Department of Computer Science, The Technical Faculty of IT and Design, Aalborg University, VBN2 Database and Programming Technologies, The Technical Faculty of IT and Design, Aalborg University, VBN3 Daisy - Center for Data-intensive Systems, The Technical Faculty of IT and Design, Aalborg University, VBN4 The Faculty of Engineering and Science (TECH), Aalborg University, VBN5 CITS, The Technical Faculty of IT and Design, Aalborg University, VBN6 Università degli Studi di Milano
Geo-social networks (GeoSNs) provide context-aware services that help associate location with users and content. The proliferation of GeoSNs indicates that they're rapidly attracting users. GeoSNs currently offer different types of services, including photo sharing, friend tracking, and "check-ins." However, this ability to reveal users' locations causes new privacy threats, which in turn call for new privacy-protection methods. The authors study four privacy aspects central to these social networks - location, absence, co-location, and identity privacy - and describe possible means of protecting privacy in these circumstances.
I E E E Internet Computing, 2011, Vol 15, Issue 3, p. 20-27