Despite Telegram's origins, its approach to users' security has privacy advocates worried. He floated the idea of restricting the use of Telegram in Ukraine and Russia, a suggestion that was met with fierce opposition from users. Shortly after, Durov backed off the idea. But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Although some channels have been removed, the curation process is considered opaque and insufficient by analysts. Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts.
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