Facebook asks for a user's phone number for a variety of reasons. A phone number can be used to reset a forgotten password; to suggest people you may know so that you can connect with them on Facebook ...

Setting up two-factor authentication is usually a recommended move to keep important accounts secure — but on Facebook, adding a phone number could impact privacy. After a tweet from a user ...

Facebook could have your phone number and email address—even if you never handed them over to the social network. Everyone knows that Facebook collects vast amounts of data. But what many people might ...

You may recently have gotten worried that Facebook has your phone number, even though you don't remember giving it to the social network. At the same time, you may have also realized the social ...

Since about September, Facebook has offered its advertisers a powerful new way to track its users as they surf the Web: It's called "phone number retargeting." (The move comes separately to Facebook's ...

Tamara Palmer is a DJ, author and publisher of the small-batch print magazine California Eating. If you use two-factor authentication (2FA) to secure your Facebook account, you likely, at some point, ...

(CNN) -- Facebook is facing criticism for not allowing users to opt out of a feature that lets people look them up using their phone number or email address. This includes users who only added their ...

Every Facebook user has a unique ID number. This number gives you some information on approximately -- but not precisely -- when you and your friends joined Facebook relative to each other. A lower ...

A phone number can mean much more when it’s stored on Facebook’s servers – even if you only provided it to help secure your account. Last February, software engineer Gabriel Lewis tweeted that adding ...