Is Facebook Sharing Your Phone Number
Like many other services, FB asks you for your mobile number so that they can send you a text response should you lose your login.
However, if you give your number to them, Facebook exposes that information to all your friends. ie, Go to Account in the upper right, select Edit Friends, go left on that screen and click on Contacts. All phone numbers are published, which is the image I’ve posted here.
To prevent this, go into privacy settings, select customize, scroll all the way to the bottom and select “only me” next to your contact information… or remove your number entirely.
Filed Under: More reasons I don’t like Facebook.
UPDATE: Vadim Lavrusik, Facebook’s Journalist Program Manager, takes us to task in a repost writing, “Rumors claiming that your phone contacts are visible to everyone on Facebook are false.” (Emphasis ours).
We never wrote that they are visible to everyone though. Reread the above, we write, “Facebook exposes that information to all your friends,” and then explain how to opt out if you’d like.