Some privacy experts say Telegram is not secure enough Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. 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. False news often spreads via public groups, or chats, with potentially fatal effects. "We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said.
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