I have occasionally received ‘invitations’ from people, most of whom I know only vaguely, to join them on Facebook. I’ve no wish to join Facebook, so just ignore these. Yesterday, however, I received yet another invitation, from someone who runs art classes I once enquired about. Underneath, Facebook lists three other people who have invited me in the past. And, below that, there is a list of nine other people ‘whom you may know’ – none of whom have ever invited me, and three of whom I have had only very basic contact with – eg a single enquiry made to an archivist.
This really worries me – how does Facebook know that I have ever had any contact with these people? Can Facebook access their emails, see where they are all going to, and cross-reference them with people who have received an invitation from elsewhere? Or can they, having once been given my email address, somehow gain access to my Sent messages, see where they are being sent to, and cross-reference them against their existing Facebook membership??
This really worries me – it just seems such an invasion of my privacy, and concerns me that they may be able to access all sorts of personal information and conversations.
Can you explain how this can be happening, and suggest any way to block it, please??