Despite Telegram's origins, its approach to users' security has privacy advocates worried. Russian President Vladimir Putin launched Russia's invasion of Ukraine in the early-morning hours of February 24, targeting several key cities with military strikes. In 2018, Russia banned Telegram although it reversed the prohibition two years later. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion. Oleksandra Matviichuk, a Kyiv-based lawyer and head of the Center for Civil Liberties, called Durov’s position "very weak," and urged concrete improvements.
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