The title is not correct IMO, it is not "end-to-end encrypted" by default.
But the traffic between you and the Telegram server is always encrypted and the "end-to-end encryption" can be enabled.
But the traffic between you and the Telegram server is always encrypted and the "end-to-end encryption" can be enabled.
It's all great, also arguments a generation old.
Maybe I should add 'literate' on my resume too...
Telegram really has kind of pulled off a masterstroke in marketing by convincing people that it is e2e encrypted (honestly, as a non-user I assumed that its non-group messaging was until the current fuss), while not being, even where it would be easy to be (non-group stuff). One might reasonably question their motives there.