For years, the Great Firewall of China has blocked some of the largest online services coming out of the United States, including Google, Facebook and Twitter.
원문출처 : https://www.cnn.com/2020/08/15/tech/tiktok-wechat-security-us-china-intl-hnk/index.html
원문출처 : https://www.cnn.com/2020/08/15/tech/tiktok-wechat-security-us-china-intl-hnk/index.html