Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov. 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. False news often spreads via public groups, or chats, with potentially fatal effects. He adds: "Telegram has become my primary news source." But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat.
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