It's amazing how Telegram has managed to get journalists to write about it this way, as though all its messaging has end-to-end encryption. In fact, this is true only for "secret chats," which must be activated manually and are therefore a tiny fraction of Telegram's traffic.
@kevinrothrock Many journalists don't understand the tech they write about. This is a very common problem. They advertise to users all your traffic is "encrypted" when it's sent over a standard https connection or advertise traffic is "encrypted" when the company, not the user, holds the encryption keys, leaving users with an idea their conversations are private. They aren't exactly lying but they aren't being honest either.