But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. In addition, Telegram's architecture limits the ability to slow the spread of false information: the lack of a central public feed, and the fact that comments are easily disabled in channels, reduce the space for public pushback. Although some channels have been removed, the curation process is considered opaque and insufficient by analysts. In 2018, Russia banned Telegram although it reversed the prohibition two years later.
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