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How save is XMPP really?
(lemmy.world)
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this post was submitted on 05 Oct 2024
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Privacy
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It depends on the client and the security implementations they support. For example IIRC no client support the last version of OMEMO (I think it was about OMEMO, I remember an article about it some time ago). Also are you sure that all the other people's clients are on the same version and you're not susceptible to a downgrade attack?
Unless you are ready to/want to control the whole environment (i.e. at least the clients and possibly the server), look into simplex.chat
There are some clients that support the latest version of OMEMO, but yes, since the most popular ones do not, you end up using the older version most of the time. That said, the older version is not generally unsafe, it basically is the same as WhatsApp or Signal are using. The newer version is just somewhat better as it includes some lessons learned from earlier attempts.