Submission + - O2 (UK) send your phone number to every site you v
JanusDC writes: It seems that the UK mobile company O2 sends your phone number to every website you visit using their network. It's hidden in the header, so you can easily be identified and tracked. The twitter user http://twitter.com/lewispeckover had made a website where you can check all the header sent by your device: http://lew.io/headers.php