Response from Facebook
Bruce Schneier raises some concerns about how Facebook works with advertisers and what it does with people’s data. These concerns are based on some misconceptions so we wanted to clarify the facts for you.
Advertising is Facebook’s business model but nothing is more important to us than user experience, safety and enjoyment. We never share personally identifiable information with advertisers nor do we sell personal information to anyone. Advertisers only ever see annonymised and aggregated data. Sheryl Sandberg, Facebook’s COO, explains how advertising works in relation to privacy here: http://blog.facebook.com/blog.php?post=403570307130
Users control and own all of their data on Facebook and this is clearly set out in our terms: http://www.facebook.com/terms.php. Users control when to add information to Facebook, when to change it and when to take it down. This is not affected by any third party. To find out what other people can see about you on Facebook then click “Preview my profile”.
You can visit our Help centre (http://www.facebook.com/help/), Safety Centre (http://www.facebook.com/help/?safety) and Guide to privacy (http://www.facebook.com/privacy/explanation.php) to find out more about safety, privacy and security on Facebook.
Sophy Silver, Facebook’s press office