“We found that the content filtering function was disabled on Xiaomi phones sold in Lithuania and did not perform content censorship, but the lists were sent periodically. This study showed data being sent to China from built-in apps like Security, Mi Browser, Cleaner, MIUI Package Installer, Themes, Music, and Downloads with “MiAdBlacklistConfig.” Some examples of keywords and phrases included in the list (translated here to English): User Login, Facebook Notification, YouTube SigninĪnalysis suggested that the Xiaomi device had the technical capability to “censor the content downloaded to it.” A list of keywords and phrases appear in the phone in a list in Chinese characters.Adblock Show Notification, Adblock Switch.Personalized Services, Miui Personalized.APP Boot, App Boot Third Party, First AppStart, First AppStart Third Party.Enhanced Incognito Switch, User Incognito Mode.User Tab News, User Newsfeed, First Enter NewsFeed Way.The Xiaomi device had some serious potential for not only security issues, but censorship through capture and transmission of “up to 61 parameters about the user’s actions on the phone.” In the Xiaomi Mi Browser (web browsing app on the phone in this analysis), a “Sensor Data API” tracked the following parameters (and more):
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