Despite Telegram's origins, its approach to users' security has privacy advocates worried. READ MORE The Securities and Exchange Board of India (Sebi) had carried out a similar exercise in 2017 in a matter related to circulation of messages through WhatsApp. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion. "Like the bombing of the maternity ward in Mariupol," he said, "Even before it hits the news, you see the videos on the Telegram channels."
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