Specifically, the problem is the phone number that users can provide in two different situations.
Two-factor authentication for Facebook
Get extra security for your account with two-factor authentication.
This is one more problem that the social web connection giant Facebook will have to deal with.

The security mobile number was not supposed to be included in the user profile and thus be exposed.
Even worse is that the social web connection giant Facebook is spreading it within its advertising partners.
So, what do you think about this?

Simply share all your views and thoughts in the comment section below.
