Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. Sebi said data, emails and other documents are being retrieved from the seized devices and detailed investigation is in progress. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion. Again, in contrast to Facebook, Google and Twitter, Telegram's founder Pavel Durov runs his company in relative secrecy from Dubai. Some privacy experts say Telegram is not secure enough
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