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. 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. This provided opportunity to their linked entities to offload their shares at higher prices and make significant profits at the cost of unsuspecting retail investors. Perpetrators of such fraud use various marketing techniques to attract subscribers on their social media channels.
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