The fact that telegram operates in a country that scores 18/100 on global freedom and 30/100 on internet freedom.
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I'm not an expert but I'll use this analogy.
Signal is you meeting a person who gives you secure devices. This person then can only ever provide the following information to someone else. From Signal website. "The phone number. the date and time a user registered with Signal and the last date of a user's connectivity to the Signal service." Only your device and your friends device can read the messages. It goes direct from you to them. The only way to read any message is having the device.
Telegram is like you making an agreement with another person. By default messages are encrypted but go to the other person for decryption before going to your friends device. This other person Telegram has and will give the phone number, messages, serverlogs, dates to legal entities by request. Now there is an option to bypass this person by using "secret chats" . This will make it so the message is directly from your device to their device. Telegram can't read messages but as I understand they can still potentially have metadata, server logs of when messages are sent, how many, what device they are sent from. Bottomline is they have activity logs Signal can only provide the date you signed up and the last time you used the app. Not only that but just being on the Telegram platform which allows bots makes you a target. Bots will contact you like spam. Sending you harmful links, etc.
Almost every security person I've ever read says. "I use Signal". Why wouldn't you go with the service that by default has end to end encryption? Telegram makes it a option you have to select for each person. Both use your phone number.
These are very basic descriptions. I'm Happy to remove or update if I got anything wrong.
I won't be popular in this thread, but I don't fight this battle anymore. Telegram beats Signal in virtually every aspect of user experience. If a person is unlikely to be convinced that e2ee is worth taking all the UX hits, I don't try anymore.
I keep seeing this claim, but I may be too much of a computer nerd to notice when using them both. What does Telegram do better and how?
I may be too much of a computer nerd to notice when using them both
That's probably true of just about everyone on Lemmy.
What does Telegram do better and how?
User experience, like I said. How many less technically inclined people do you know who will understand why they have no message history in Signal after moving devices? Yes, they could have kept it if they'd had backups enabled and moved the archive over and restored from it, but it's too late now, their entire contact list has been notified that their safety number's changed (another aspect we get to attempt to explain). It's a bummer.
Signal is USA government approved. Definitely don't trust it. Use Matrix.
it's open source
Sure. You can trust your own fork. Just don't use the official repos or their servers. The client isn't where the danger is.
Use signal and matrix. Telegram is as people pointed out usually unencrypted. Also unverifieble in its code . Signal is easy uses but phonenumbers ( you can register a fake one however) but always EE2E. Matrix does not require a number at all. But definatly is a bit harder to get started with and are therefore harder to get your contact to use it.
If we care about the planet & sustainability, we would not be recommending a eventual-consistency model for chat communications. Matrixβs protocol is so wasteful & expensive.
You donβt have to learn Morse code.