Russian officials said they are considering a ban on Facebook for the start of 2018 unless the social network is willing to comply with the country’s new privacy and user protection rules. Facebook must store data on Russian users on servers located in Russia, and not move information overseas. Russia previously banned LinkedIn for the same reason in November 2016. Twitter has already agreed to the demands of Russian officials and informed Roskomnadzor that it plans to move data on users on Russian servers by mid-2018.
Source: https://www.bleepingcomputer.com/news/technology/russia-threatens-to-ban-facebook-while-china-blocks-whatsapp-with-gfw-upgrade/