Facebook 'Massive Security Hole' Lets Anyone Find You from Your Phone Number

Facebook is facing a new wave of criticism for two-factor authentication shenanigans

That is, they gave their phone number to Facebook for security, and Facebook continues to prove that it's using that number for much more. But luckily now, any of the users are not able to enter your personal phone number directly in the Facebook search bar to find any profile they want to find with the help of phone number.

During the process, the setting is available to choose from the three options whether, "everyone", "friends of friends", or "friends" can manage your phone number this way, there is no alternative to options out entirely.

A mobile security loophole on Facebook could allow anyone to look up your profile, regardless of your security settings.

Facebook is using phone numbers that users submitted for two-factor authentication as a way for them to be searchable on the platform.

"For years Facebook claimed adding a phone number for 2FA was only for security". "And remember, by default Facebook allows the whole world to find out who you are by entering your phone number".

Since Facebook has made it compulsory for page administrators to enable 2FA past year, we can presume that more users have started using this security feature and noticed how Facebook misdirects it. Facebook while giving a response to TechCrunch, elaborated that it stopped requiring phone numbers for 2FA enrollment last May, however, phone number-based 2FA can still be the most usable option for many people. However, the recent discovery has only intensified concerns stemming from the way Facebook handles user data.




It seems that Facebook is in the spotlight all over again and not for the right reasons. After adding the number Burge was unable to hide it, and it can be searched.

'It was shown for MONTHS before a link was added in September 2018 clarifying "actually we'll use this wherever we damn well please"'. To do that, users will need to click on Settings Privacy.

This isn't the first time Facebook has been accused of using 2FA numbers for more than security.

"This isn't a mistake now, this is clearly an intentional product choice", he said via Twitter, adding that Facebook needs someone in the product design chain advocating for security. Before then, a phone number was the only mandatory option. If any of your friends allow Messenger or WhatsApp to access their contacts, Facebook can learn your number that way, according to Burge.

Quoting the above tweet, security expert and academic Zeynep Tufekci said, "Using security to further weaken privacy is a lousy move-especially since phone numbers can be hijacked to weaken security". FB can't credibly require 2FA for high-risk accounts without segmenting that from search & ads.

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