Our first network security analysis of the popular Chinese social media platform, RedNote, revealed numerous issues with the Android and iOS versions of the app. Most notably, we found that both the Android and iOS versions of RedNote fetch viewed images and videos without any encryption, which enables network eavesdroppers to learn exactly what content users are browsing. We also found a vulnerability in the Android version that enables network attackers to learn the contents of files on use...| The Citizen Lab
We conducted the first analysis of WeChat’s tracking ecosystem. Using reverse engineering methods to intercept WeChat’s network requests, we identified exactly what types of data the WeChat app is sending to its servers, and when. This report is part one of a two-part series on a privacy and security analysis of the WeChat ecosystem.| The Citizen Lab
The Information Controls Fellowship Program (ICFP) from the Open Technology Fund (OTF) fosters research, outputs, and creative collaboration on repressive Internet censorship and surveillance issues. We welcome proposals from fellowship candidates for research projects related to our current thematic areas.| The Citizen Lab
This report performs the first public analysis of MMTLS, the main network protocol used by WeChat, an app with over one billion users. The report finds that MMTLS is a modified version of TLS, however some of the modifications have introduced cryptographic weaknesses.| The Citizen Lab
