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. On Feb. 27, however, he admitted from his Russian-language account that "Telegram channels are increasingly becoming a source of unverified information related to Ukrainian events." Despite Telegram's origins, its approach to users' security has privacy advocates worried. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion.
from id