The Russian invasion of Ukraine has been a driving force in markets for the past few weeks. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion. He adds: "Telegram has become my primary news source." 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. Anastasia Vlasova/Getty Images
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