Blog post by crypto professor Matthew Green, discussing what Telegram does (I wasn’t familiar with it) and criticizing its cryptography. He says Telegram by default is not end-to-end encrypted. It does have an end-to-end “secret chat” feature, but it’s a nuisance to activate and only works for two-person chats (not groups) where both people are online when the chat starts.
It still isn’t clear to me why Telegram’s founder was arrested. Green expresses some concern over that but doesn’t give any details that weren’t in the headlines.
There is a reason the Russian government allow the use of it and even let their military use it - and it is not due to security! They have a backdoor into the chats and UAE it actively for listening in on things and spreading propaganda and disinformation.
Then why do the Ukrainians also use it?
Nør for military communication. Just for public info