This report demonstrates the technical underpinnings of how WeChat image censorship operates and suggests possible evasion strategies.

加拿大多倫多大學公民實驗室（Citizen Lab）研究表明微信從一年多前就開始屏蔽與“十九大”有關的關鍵詞，隨著十九大日期逼近，該關鍵詞庫也在不斷更新。關鍵詞涵蓋內容非常廣泛，不僅包括了批評性言論，許多對中央政策和黨意識形態的中性指稱也被過濾。

The 19th National Communist Party Congress was held from October 18-24 2017. WeChat, China’s most popular chat app, blocked a broad range of content related to the Congress.

加拿大多伦多大学公民实验室（Citizen Lab）研究了微信和微博针对刘晓波逝世的信息审查，初步分析显示，在刘晓波去世後审查力度大幅增加，以至于任何对刘晓波的讨论乃至简单提及也不被允许.

WeChat and Sina Weibo adapted and evolved their censorship efforts in response to the death of Liu Xiaobo.

本报告属于多伦多大学蒙克全球事物学院公民实验室对微信和新浪微博信息审查的研究系列。通过一系列测试，研究者发现了在这两个平台上被审查过滤的与“709追捕”相关的关键词和图片。与公民实验室过去的研究结果相同，审查以不透明的形式进行。

This report analyzes the information control practices related to a national crackdown on Chinese rights lawyers and activists on two leading Chinese social media networks. We document the Search filtering on Weibo, China’s Twitter-like service, as well as keyword and image censorship on WeChat, the most popular chat app in China.

From January 2 to 13 2017, His Holiness the Dalai Lama is holding a popular Tibetan Buddhist teaching called Kalachakra in Bodh Gaya, India. Increased restrictions from the government of China has barred Tibetans in Tibet from attending the teachings. This report documents blocking of Kalachakra-related keywords on WeChat revealing how restrictions on the ritual extend online.

Citizen Lab Researcher Lotus Ruan was interviewed by VOA Mandarin on the recent release of the report entitled “One App Two Systems, How WeChat uses one censorship policy in China and another internationally.”