Good news, privacy advocates! Facebook has just pushed a change over to their site which now hides users’ email addresses (other than their given @facebook.com address) by default. The option can be changed via a new “visibility settings” page, which is distinctively different from Facebook’s previous privacy settings in a couple of distinct ways.
One such difference between the two types of settings is a big one: while other users won’t be able to see your email addresses if you’ve got them set to hidden, your addresses will still be synced to your friends’ mobile devices along with your phone number and any other information they’ve got access to according to your privacy settings.
Unfortunately, a big hit Facebook’s syncing features today that blocked any email addresses except for @facebook.com addresses from being synced onto users’ devices. According to the company, this was an unintentional issue that has nothing to do with Facebook’s new visibility settings and will be sorted out as soon as possible.
Facebook has realized that it “needs to get sorted out” the differences between the two settings to its users, and will presumably work on that in future updates.
Source: The Verge