In this report, we analyze the Windows, Android, and iOS versions of Tencent’s Sogou Input Method, the most popular Chinese-language input method in China. Our analysis found serious vulnerabilities in the app’s custom encryption system and how it encrypts sensitive data. These vulnerabilities could allow a network eavesdropper to decrypt sensitive communications sent by the app, including revealing all keystrokes being typed by the user. Following our disclosure of these vulnerabilities, Sogou released updated versions of the app that identified all of the issues we disclosed.
Vulnerabilities in Sogou Keyboard encryption expose keypresses to network eavesdropping.
Yes that’s why I’ve disabled Internet access for my keyboard since I haven’t found a FOSS one with all the features I want. Not that I need them but they’re nice and blocking network access is built in GrapheneOS anyway.
Yes that’s why I’ve disabled Internet access for my keyboard since I haven’t found a FOSS one with all the features I want. Not that I need them but they’re nice and blocking network access is built in GrapheneOS anyway.