this post was submitted on 28 Aug 2024
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Privacy

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[–] [email protected] -2 points 2 months ago (18 children)

What? How is this a red flag? Having third party clients is not good for security.

[–] [email protected] 7 points 2 months ago (15 children)

Is there any merit to this comment?

[–] [email protected] 19 points 2 months ago (14 children)

When you use a client, you are relying on the client's crypto implementation to be correct. This is only one part of it and there's a lot more to it when it comes to hardening the program. Signal focuses on their desktop and mobile clients and they hire actual security professionals and cryptographers (unlike the charlatans in this thread) to implement it correctly.

Having third party clients would not definitively mean the client is bad, but it most likely would break the security model. Just take a look at Matrix's clients.

[–] [email protected] 5 points 2 months ago* (last edited 2 months ago)

No, if your system can't support 3rd party clients properly, it is inherently insecure, especially in an e2ee context where you supposedly don't have to trust the server/vendor. If a system claims to be e2ee, but tightly controls both clients and servers (for example WhatsApp), that means they can rug-pull that e2ee at any point in time and even selectively target people with custom updates to break that e2ee for them only. The only way to realistically protect yourself from that is using a 3rd party client (and yes, I know, in case of Signal also theoretically reviewing every code change and using reproducible builds, but that's not very realistic).

Now admittedly, Signal has started to be less hostile to 3rd party clients like Molly, so it's not as bad anymore as it used to be.

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