https://techcrunch.com/2018/05/24/facebook-is-asking-users-worldwide-to-review-their-privacy-settings/

Starting this week, Facebook will begin asking users worldwide to review their privacy settings with a prompt that appears within the Facebook app. The experience will ask you to review how Facebook uses your personal data across a range of products, from ad targeting to facial recognition. This request to review Facebook’s updated terms and your settings follows a similar experience rolled out to users in the European Union as a result of the new user data privacy regulation, GDPR.

However, EU users have to agree to the new terms of service in order to continue using Facebook, Recode point out, after asking Facebook how the worldwide experience differs from the one being shown in Europe.