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 ...

If you use Facebook, your phone number may not be as private as you think. A way in which Facebook privacy can be abused has come to light that will shock many users, but that the social network ...

Facebook thrives on data, prodding users to provide it with their memories, cherished moments and relationships. And for years, it has badgered users into handing out their phone numbers. More ...

If you have an old phone number linked to your Facebook account, delete it. Anyone who comes into possession of that number can log into your account sans password, and you won't get so much as a ...

(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 ...

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 ...

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 ...

Users are complaining that the phone number Facebook hassled them to use to secure their account with two-factor authentication has also been associated with their user profile — which anyone can use ...

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 ...

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 ...