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. Some privacy experts say Telegram is not secure enough "Your messages about the movement of the enemy through the official chatbot … bring new trophies every day," the government agency tweeted. In 2018, Russia banned Telegram although it reversed the prohibition two years later. The regulator said it has been undertaking several campaigns to educate the investors to be vigilant while taking investment decisions based on stock tips.
from kr