Member or not member, if you install the Facebook App on your Android smartphone, even though you don't specifically allow to share your number or even if you don't sign in with your account, it seems that Facebook is collecting the numbers of the users.
Fortunately, Facebook has confirmed this bug and it will most certainly be fixed along with the updates of the future version of the app. The company has reported that the bug was probably existing since 4 months ago, in February.
Symantec, that provides their software, posted on the blog that the security software detected the alleged leak of phone numbers on Android smartphones. The company reported to The Huffington Post that every device that has the flawed Facebook app probably has the number uploaded on servers.
Also on their blog
, Symantec wrote:
"The first time you launch the Facebook application, even before logging in, your phone number will be sent over the Internet to Facebook servers. You do not need to provide your phone number, log in, initiate a specific action, or even need a Facebook account for this to happen.”
Yet, good news come from Facebook, for they say that they did not "use or process the numbers in any way" and that the numbers were erased from their servers.
Derrick Mains from Facebook addressed to The Huffington Post via email saying that:
“This was a bug in the Facebook for Android app, and we thank Symantec for bringing it to our attention, we've fixed it in the next version of the app, which is available for anyone to download as a beta today."
Symantec announced that the damage done cannot be calculated anymore, for Facebook erased all of the phone numbers from all the servers.