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 ...

Not on Facebook anymore? Well, maybe you used to be on the social network but deleted your account long ago. Heck, maybe you never joined Facebook at all and never even gave Mark Zuckerberg your phone ...

Facebook almost certainly has your phone number and email address, even if you never handed them over. That's because any friend who shared their address book with Facebook also shared your details.

Chances are that if you have a Facebook account, then Facebook's parent company Meta has your contact information. Even if you chose not to share that data, some of your friends have likely shared ...

The app and its brethren harvest data about non-users through their friends' contact lists. Here's how to extract and eliminate yours. reading time 2 minutes When you sign up for Facebook, Instagram, ...