Telegram groups are not E2E.
Chats are encrypted, but the servers hold the encryption keys (I believe).
There are one-to-one chats that are full e2e, but you have to enable it. And it has all sorts of compromises.
Qualifier: this is as dicumented by telegram. Since it’s not open source, we can’t really verify it
Deello@lemm.ee 2 months ago
Recent events have taught me that only individual chats are encrypted*. Group chats don’t have that feature.
Geth@lemmy.dbzer0.com 2 months ago
In telegram nothing is e2e encrypted unless you specifically ask it to be and when you do, it kills all the functionality that makes it better than others.
Deello@lemm.ee 2 months ago
That’s what I said. The person I replied to said that all messages are encrypted* with the asterisk being only if you specifically enable it. I clarified that it doesn’t apply to group chats though. I don’t use Telegram so the loss of functionality is actually a bigger deal to me than the argument around E2EE. Can you explain what features are lost when you enable it? It’s a messaging app so I’m curious what you sacrifice for E2EE.