In this paper presented at USENIX FOCI 2015 we use reverse engineering to provide a view into how keyword censorship operates on four popular social video platforms in China: YY, 9158, Sina Show, and GuaGua. We also find keyword surveillance capabilities on YY. Our findings show inconsistencies in the implementation of censorship and the keyword lists used to trigger censorship events between the platforms we analyzed. We reveal a range of targeted content including criticism of the government and collective action. These results provide evidence that there is no monolithic set of rules that govern how information controls are implemented in China.
Tag Archives: China
At the 2015 USENIX Free and Open Communications on the Internet (FOCI) workshop, held in Washington DC on August 10, Citizen Lab and collaborators present three papers.
The papers include: investigation of censorship and surveillance on China’s most popular social video platforms, an updated analysis of China’s Great Canon, and examination of securing cookie-based identifiers from passive surveillance.
This report is an analysis of the types of content removed by WeChat on its public accounts (also known as “official accounts”) blogging platform.
Jason Q. Ng on China’s censorship of online sexual innuendo, messaging applications, and event coverage
China’s censorship of social media platforms has largely been focused on speech that targets or criticizes the government, until recently. The Cyberspace Administration of China’s new regulations will target sexual innuendo, in particular 25 of the most popular “dirty words” in China.
Our report reveals that UC Browser poorly secures data in its English and Chinese language versions for Android.
UC Browser is the most popular mobile web browser in China and India, boasting over 500 million users. This report provides a detailed analysis of how UC Browser manages and transmits user data, particularly private data, during its operation. Our research was prompted by revelations in a document leaked by Edward Snowden on which the Canadian Broadcasting Corporation (CBC) was preparing a story.
UC浏览器是一种移动浏览器，它目前拥有超过5亿的注册用户，是中国和印度最受欢迎的手机浏览器。在《啰嗦的松鼠：UC浏览器的隐私与安全问题》这一报告中，公民实验室(Citizen Lab)发现中文和英文安卓版UC浏览器中存在多个隐私及安全漏洞， 并讨论了它们的重要性。
This post describes our analysis of China’s “Great Cannon,” our term for an attack tool that we identify as separate from, but co-located with, the Great Firewall of China. The first known usage of the Great Cannon is in the recent large-scale novel DDoS attack on both GitHub and servers used by GreatFire.org.
Senior Legal Advisor Sarah McKune has contributed a chapter to a new book from Oxford University Press, China and Cybersecurity: Espionage, Strategy and Politics in the Digital Domain (eds. Jon R. Lindsay, Tai Ming Cheung, Derek S. Reveron). Her chapter is entitled “’Foreign Hostile Forces’: The Human Rights Dimension of China’s Cyber Campaigns.”
According to state media organization People’s Daily, Apple agreed to Chinese government “security checks.” Citizen Lab Research Fellow Jason Q. Ng expressed concern that this practice may set a trend of compliance to such demands amongst other firms.