“If you’re using Facebook, you’re giving the company a ton of information about yourself, which it is selling to advertisers in one form or another.”
“Facebook is a great utility if you want to stay in touch with friends and family, share photos, and see what other people are up to in their lives.
It’s free, of course, but that doesn’t mean it comes without a price. If you’re using Facebook, you’re giving the company a ton of information about yourself which it is selling to advertisers in one form or another.
Most people forget that when they download an app or sign-in to a website using their Facebook login, they’re giving those companies a look into their Facebook profiles. Your profile contains a lot of personal information that can often include your email address and phone number, but frequently also your work history and your current location. And most people don’t realise that if you’re sharing any of that data with your friends then apps used by those friends can see that data too!”
Thanks to Business Insider