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To do so, go to the appropriate app store App Store for iPhones, Google Play for Android phones , search for and download the Facebook app.
Disconnect Facebook Note: If you signed up with Facebook, you can't disconnect it.
Then, from the left-hand menu, choose Privacy.
The page requires you to enter either your email address or mobile number.
Click Add to Friends next to their profile picture to give them a friend request.
Click the arrow in the top right corner and then Settings to see and update your privacy preferences on Facebook.
This will prevent your account from getting hacked.