An interesting article from a while back (2000) by Jeffrey Rosen on the loss of privacy in cyberspace. See The Eroded Self
In cyberspace, there is no real wall between public and private. And the version of you being constructed out there – from bits and pieces of stray data – is probably not who you think you are.
Something to think about.
Full reference: Jeffrey Rosen, “The Eroded Self”, New York Times Magazine (Apr 30, 2000).