Who discloses the most on Facebook?

With the development of new media, the issue of privacy and its determinants has become the subject of a large body of literature in recent years. The main objective of this study was to check whether loneliness is a predictor of putting private information on Facebook. The participants were 887 young people. Facebook Privacy Scale and Loneliness Scale were used. We showed that young age and loneliness are predictors of disclosure on Facebook. Moreover, junior high school students more often put private information on their Facebook profiles than senior high school and university students.