The Russian invasion of Ukraine has been a driving force in markets for the past few weeks. After fleeing Russia, the brothers founded Telegram as a way to communicate outside the Kremlin's orbit. They now run it from Dubai, and Pavel Durov says it has more than 500 million monthly active users. Individual messages can be fully encrypted. But the user has to turn on that function. It's not automatic, as it is on Signal and WhatsApp. I want a secure messaging app, should I use Telegram? Some privacy experts say Telegram is not secure enough
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