Facebook proposed a change to its privacy policy which would make it possible for it to share your information automatically with pre-approved websites. This would mean that you might visit a website and discover that it already knows who you are, your date of birth, where you live, who your friends are. All, without ever having given the site explicit permission to access that data. Even though Facebook says that only a small number of users are affected by the changes, the poll results have been slammed by users.”]
Source: https://grahamcluley.com/95-support-facebook-privacy-poll-reveals/