Not true. You're spreading false and old FUD.
ad1: starting from quite a long time, secret chats use MTProto 2.0 which is build on stanard crypto primitives you're seeing everywhere. Read it here high level: https://core.telegram.org/api/end-to-end and free to verify on github.
ad2: this is not true, and is discussion about user choice, not security.
please do not spread false old information. world changes.
Re:“Why Using WhatsApp Is Dangerous“
by emptysongglass on Friday January 31, 2020 @07:21AM
(#22201048)
I'm seeing this guy pushed down when he's totally correct. MTProto 1.0 is dead, 2.0 is built on standard crypto primitives.
Chats are in fact encrypted in non-Secret chats, just to the server and not e2e.
Please, people, don't contribute to misinformation.
First, calling my information FUD is absurd. I wasn't aware of MTProto 2.0 because I don't follow telegram since I think it's a bad choice. Anyway,
(1) I don't see any review by cryptographers that MTProto 2.0 is safer. Where is the evidence?
(2) Unless this is also a recent change, it is true. It's not about choice really, it's about the default behavior, since most users won't choose.
(1) homegrown encryption which hasn't been extensively audited, which should be considered suspect by default because it's usually broken.
(2) Most chats are not encrypted at all.