US threat intelligence firm Recorded Future has been tracking North Korean Internet traffic since April 2017. The company’s engineers have been passively tracking and analyzing Internet traffic from North Koreans inside and outside the country’s borders. North Koreans are now using alternative Chinese social networks like Alibaba, Tencent, and Baidu. The amount of obfuscated traffic has grown from 1 percent in July 2017 to nearly 13 percent in March this year. North Korean authorities appear to have instructed users to stop hanging around on US social networks.
Source: https://www.bleepingcomputer.com/news/technology/north-koreas-elites-are-ditching-facebook-for-chinese-social-networks/