You May Not Have A Facebook Account But They May Still Have A Shadow Profile Of You

 Max Schrems of Europe Versus Facebook has filed numerous complaints about Facebook's data collection practices. One complaint that has failed to draw much scrutiny regards Facebook's creation of Shadow Profiles. 'This is done by different functions that encourage users to hand personal data of other users and non-users to Facebook... (e.g. synchronizing mobile phones, importing personal data from e-mail providers, importing personal information from instant messaging services, sending invitations to friends or saving search queries when users search for other people on facebook.com). This means that even if you don't use it, you may already have a profile on Facebook.'"