Two days after Russia invaded Ukraine, an account on the Telegram messaging platform posing as President Volodymyr Zelenskiy urged his armed forces to surrender. Friday’s performance was part of a larger shift. For the week, the Dow, S&P 500 and Nasdaq fell 2%, 2.9%, and 3.5%, respectively. READ MORE "He has kind of an old-school cyber-libertarian world view where technology is there to set you free," Maréchal said. False news often spreads via public groups, or chats, with potentially fatal effects.
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