Despite Telegram's origins, its approach to users' security has privacy advocates worried. False news often spreads via public groups, or chats, with potentially fatal effects. The Dow Jones Industrial Average fell 230 points, or 0.7%. Meanwhile, the S&P 500 and the Nasdaq Composite dropped 1.3% and 2.2%, respectively. All three indexes began the day with gains before selling off. Perpetrators of such fraud use various marketing techniques to attract subscribers on their social media channels. Founder Pavel Durov says tech is meant to set you free
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