If you have or are using one of the applications Facebook on iPhone or other platforms then you probably do not know a truth that is all your contacts in Facebook may have been copied to and stored on their servers, including their names and contact phone number. Even for those contacts that have Facebook or not, are also stored on the server. Every time you edit the contact information on the phone, they would be updated on the social networking always. Perhaps in the table Terms and Conditions of Use Facebook is a part of it referring to allow them to do this but the majority of us never pay attention to the long table ngoang that. Although so far no adverse consequences occurred, but if you want, you can delete the entire phonebook was stored on Facebook follow the instructions below.
On the corner of the screen, select Account> Edit friends.
On the left screen, select Contacts. In here you'll find all your contacts, including phone number of Facebook friends and contacts in the phone.
Look to the right edge of the screen, click on the link "this page".
Continue to follow the instructions on the screen to turn off auto-sync your contacts on your phone's Facebook application. Then press Remove.
On the information technology BGR.com, even many members said they never turn on automatic synchronization of contacts on the phone but when viewed on Facebook, then saw his whole book is cutting processing on it. Recently, a spokesperson for Facebook has officially respond to the page that nothing has ever BGR.com user's contacts are shared with many others, that only each alone you have the right to view information on.
How to disable synchronization of directories of Facebook on the iPhone / iPod / iPad:
Open Applications Facebook up.
Click Friends.
Click on the arrow at the top right corner of the screen> select Sync Contacts.