Despite Telegram's origins, its approach to users' security has privacy advocates worried. In 2018, Russia banned Telegram although it reversed the prohibition two years later. Founder Pavel Durov says tech is meant to set you free 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. The gold standard of encryption, known as end-to-end encryption, where only the sender and person who receives the message are able to see it, is available on Telegram only when the Secret Chat function is enabled. Voice and video calls are also completely encrypted.
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