Chinese authorities have launched a man-in-the-middle (MitM) attack against the encrypted traffic between CERNET and Google. Chinese authorities are intercepting encrypted traffic to and from Google’s servers in an effort to control the media as well as messages on all fronts. Authorities conducted similar attacks in the past, in January 2013, against developer site Github. Authorities feel that blocking Google might receive an angry rebuttal from students, researchers, and educators throughout the country, so MitM attack will solve the purpose.
Source: https://thehackernews.com/2014/09/government-accused-of-intercepting.html