This article incorrectly implies that Telegram is end-to-end encrypted, by putting it in the same line as WhatsApp and Signal.
Telegram doesn't even try to be end-to-end-encrypted by default. WhatsApp claims to be end-to-end-encrypted, but it's not open-source, Signal is end-to-end-encrypted.
telegram may not be end-to-end encrypted by default but it does support end-to-end encryption. the generous reading is that this encryption, if used, should be broken.
so as i read it the article doesn't suggest that all of telegram is end-to-end encrypted only that it has support for it.
> WhatsApp claims to be end-to-end-encrypted, but it's not open-source
And explicitly does not encrypt metadata.
Meanwhile NSA top brass publicly stated, "We kill people based on metadata."
Yes and the secret chats in telegram are super clumsy. Both parties need to be online at the same time for the key exchange, it only works on one device at each side. Nobody I know uses them.
I sent some people a password reset through them but half of them couldn't get their head around it.
So yeah while it has secret chats, they aren't very useful at all.