Our 5 backup servers located in Ali cloud USA were attacked by hackers on January 7th, 2017 (Beijing time, GMT +8), resulting in interruption of data communication with the service layer server. Some of our devices were affected. We have recovered the service gradually, and we have reported this issue to the relevant safety supervision departments.
We apologize for this inconvenience. We will take various measures to make every effort to maintain the safe operation of the site and to provide better service for you.