Facebook Lets Anyone View Your Profile Using Your Phone Number

Facebook is using your 2FA phone number for 'look up' search feature

Facebook is using your 2FA phone number for 'look up' search feature

Even if you have no phone number listed on your user profile, a number used for two-factor authentication (2FA) will be associated and used for a look up search if it is available.

Facebook's use of user phone numbers came back into the limelight this week, as many users realized that their account was still discoverable by people searching with their phone number. Facebook had admitted a year ago to using the data collected under the guise of security to target users with advertisements. "The holy grail. The unique ID".

The fact that Facebook accounts are searchable purely with a phone number raises some interesting privacy and security concerns.

While it is possible to take the setting down a couple of notches so only friends, or friends of friends, can search for you in this way, there is no way to disable it entirely.

Massive gator caught in Georgia
The alligator found came pretty close to being the largest ever found in Georgia. Another vehicle you may operate if you become a Georgia Game Warden!

He has some simple advice for Facebook users: "TL;DR: Login-with-Phone-Number is the new Login-with-Facebook".

It is certainly concerning that a phone number handed over in the name of security could be used for other things, but Facebook says that the settings highlighted "are nothing new", telling TechCrunch that "the setting applies to any phone numbers you added to your profile and isn't specific to any feature".

As TechCrunch reports, a tweet by Jeremy Burge on Friday raised alarm bells as it revealed Facebook won't allow users to opt-out of having their phone number used to look them up. Of course, 2FA authentication is not mandatory (at least not for personal profiles), but if you've already set up the "security" feature, there seems to be nothing you can do to prevent Facebook from using your phone number in several shady ways.

The world's most popular social network has become by far the most controversial tech company too lately, taking a lot of flak for exploiting pretty much every single dubious data harvesting and user privacy violating trick in the book.

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