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. False news often spreads via public groups, or chats, with potentially fatal effects. The Russian invasion of Ukraine has been a driving force in markets for the past few weeks. Some privacy experts say Telegram is not secure enough Stocks dropped on Friday afternoon, as gains made earlier in the day on hopes for diplomatic progress between Russia and Ukraine turned to losses. Technology stocks were hit particularly hard by higher bond yields.
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