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What are the reasons to use Signal over Telegram (lemmy.ml)

submitted 1 day ago* (last edited 1 day ago) by [email protected] to c/[email protected]

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Greetings!

A friend of mine wants to be more secure and private in light of recent events in the USA.

They originally told me they were going to use telegram, in which I explained how Telegram is considered compromised, and Signal is far more secure to use.

But they want more detailed explanations then what I provided verbally. Please help me explain things better to them! ✨

I am going to forward this thread to them, so they can see all your responses! And if you can, please cite!

Thank you! ✨

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[–] [email protected] 15 points 1 day ago (1 children)

So if I understand it Signal has your phone number but only logs sign up date and last activity date. So yes they can say this person has Signal and last used it on date X. Other than that no information.

Matrix doesn't require a phone number but has no standard on logging activity so it's up to the server admin what they log, and they could retain ip address, what users are talking in what, rooms, etc. and E2EE is not required.

I think both have different approaches. I'm just trying to understand. On one hand you have centralized system that has a standard to minimize logs or decentralized system that must be configured to use E2EE and to remove logs.

[–] [email protected] 2 points 17 hours ago* (last edited 17 hours ago)

They have your phone number (meaning your full identity, and even current address), and as the primary identifier, it means they have message timestamps and social graphs.

Its impossible to verify what code their server is running. Or that they delete their logs, because they say they do? You should never rely on someone saying "just trust us". Truly secure systems have much harder verifiability tests to pass.