Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. Ukrainian President Volodymyr Zelensky said in a video message on Tuesday that Ukrainian forces "destroy the invaders wherever we can." Some privacy experts say Telegram is not secure enough "This time we received the coordinates of enemy vehicles marked 'V' in Kyiv region," it added. Telegram boasts 500 million users, who share information individually and in groups in relative security. But Telegram's use as a one-way broadcast channel — which followers can join but not reply to — means content from inauthentic accounts can easily reach large, captive and eager audiences.
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