China tightens Great Firewall by declaring unauthorized VPN services illegal
South China Morning Post, January 23, 2017
http://www.scmp.com/news/china/policies-politics/article/2064587/chinas-move-clean-vpns-and-strengthen-great-firewall
Related:
中国正式“清算”VPN (China “cleans up” VPN services officially)
Deutsche Welle, January 22, 2017
http://www.dw.com/zh/中国正式清算vpn/ a-37231959 工业和信息化部关于清理规范互联网网络接入服务市场的通知 (Ministry of Industry and Information Technology Notice Regarding Clearance and Regulation of VPN Services)
Ministry of Industry and Information Technology, January 17, 2017
http://www.miit.gov.cn/n1146295/n1652858/n1652930/n3757020/c5471946/content.html