TY - GEN
T1 - Retrospective privacy
T2 - 9th Symposium on Usable Privacy and Security, SOUPS 2013
AU - Ayalon, Oshrat
AU - Toch, Eran
PY - 2013
Y1 - 2013
N2 - Online social networks provide access to the user's information for long periods of time after the information's initial publication. In this paper, we investigate the relation between information aging and its sharing preferences on Facebook. Our findings are based on a survey of 193 Facebook users, in which we asked users to specify their sharing preferences and intentions towards posts that were published in different periods of time (from the time of the survey and up to 24 months prior to the time of the survey.) Our results show that willingness to share significantly drops with the time passed since publishing the post. The occurrence of life changes, such as graduating from college or moving to a new town, is correlated with a further decrease in the willingness to share. We discuss our findings by relating it to information aging theories and privacy theories. Finally, we use our results to reflect on privacy mechanisms for long-term usage of online social networks, such as expiry date for content and historical information reviewing processes.
AB - Online social networks provide access to the user's information for long periods of time after the information's initial publication. In this paper, we investigate the relation between information aging and its sharing preferences on Facebook. Our findings are based on a survey of 193 Facebook users, in which we asked users to specify their sharing preferences and intentions towards posts that were published in different periods of time (from the time of the survey and up to 24 months prior to the time of the survey.) Our results show that willingness to share significantly drops with the time passed since publishing the post. The occurrence of life changes, such as graduating from college or moving to a new town, is correlated with a further decrease in the willingness to share. We discuss our findings by relating it to information aging theories and privacy theories. Finally, we use our results to reflect on privacy mechanisms for long-term usage of online social networks, such as expiry date for content and historical information reviewing processes.
KW - Information aging
KW - Online social networks
KW - Privacy
UR - http://www.scopus.com/inward/record.url?scp=84883056526&partnerID=8YFLogxK
U2 - 10.1145/2501604.2501608
DO - 10.1145/2501604.2501608
M3 - Conference contribution
AN - SCOPUS:84883056526
SN - 9781450323192
T3 - SOUPS 2013 - Proceedings of the 9th Symposium on Usable Privacy and Security
BT - SOUPS 2013 - Proceedings of the 9th Symposium on Usable Privacy and Security
Y2 - 24 July 2013 through 26 July 2013
ER -
