Despite Telegram's origins, its approach to users' security has privacy advocates worried. "The result is on this photo: fiery 'greetings' to the invaders," the Security Service of Ukraine wrote alongside a photo showing several military vehicles among plumes of black smoke. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. Anastasia Vlasova/Getty Images But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat.
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