this post was submitted on 27 Feb 2026
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Privacy
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It really depends on your needs and what people you communicate with are willing to use. A few platforms that are notable in no particular order.
SimpleX Chat is probably the gold standard right now. It uses absolutely no user IDs such as phone numbers, no usernames, no random strings of text. Instead, it creates unique, pairwise decentralized message queues for every single contact you have. Because there is no global identity, there is no metadata connecting your conversations together.
Session is a popular Signal alternative. It doesn't require a phone number and routes your messages through an onion-routed decentralized network that's similar to Tor. Since your IP address is hidden and messages are bounced through multiple nodes, no single server ever knows who is talking to whom, stripping away metadata.
Jami is completely decentralized, open-source platform. It uses Distributed Hash Tables to connect users directly to one another without a central server. Notably, it supports high-quality voice and video calls.
heard SimpleX is really good, the only thing that bothers me is their vc funding model. It makes me feel a bit suspicious.
Yeah, I'm leery about anything where vcs are involved as well for obvious reasons. The tech itself does seem solid though, and it is open source. If it does start moving in a sketchy direction at least it could be forked at that point.
I really want simplexchat to evolve and get more features. If they ever make a lot of mod tools and the possibility to make giant servers with thousands with chatrooms like discord I could see it having mass appeal due to the ease of "signup"
yeah it definitely has some promise
Session is a security downgrade. It doesnt support forward secrecy which is hella important.
Session actually does implement a form of forward secrecy through the Session Protocol. https://getsession.org/blog/session-protocol-v2
It seems that forward secrecy is still in development from the blog you showed.
I still wouldnt use session for the reasons stated in this Soatok's (a cryptographer) blogs. Even if they fix(ed) these problems, I have no trust for their security implementations. Why use session instead of something like Briar?
https://soatok.blog/2025/01/14/dont-use-session-signal-fork/ https://soatok.blog/2025/01/20/session-round-2/
I'm not advocating for using Session specifically, I just listed it as a viable alternative to Signal. Given that it's forked from Signal presumably it's an easier switch for people who like the general mechanics of Signal and its encryption system.
Understood.
I like your analysis, and would love your thoughts on matrix(assuming you have ofc)
It's better than Signal since you don't have to disclose any personal info, but people have pointed out some issues with federation in it. Again, it's one of those things that may or may not matter based on your use case.
That link seems dated (Nov. 2024). If anyone finds a more current critique, pls send. I also get auto-kicked from HLC simplex group, so I'm not sure what to think of them but commando's matrix server was amazing befored abandoned
People keep finding significant vulnerabilities in its cryptography and the Matrix team tries to deflect or create strawmans for why it isnt actually a vuln. Soatok found a vulnerability in 2024 by just browsing the source code for tiny bit of time, and again just two weeks ago after looking for a couple hours. In both cases, Matrix then responded to his vuln report with hostility, saying it wasnt actually a vulnerability. He is sitting on another vulnerability.
Having a cleartext mode is a security downgrade and no secure messenger should support cleartext. It only barely got functional forward secrecy recently. VoIP in most Matrix clients (and servers) still use Jitsi backend which isn't E2EE, even with the release of the newer (secure) Element call protocol. Matrix leaks tons of metadata, such as usernames, room names, emoji reactions, generate URL embedded previews. Rooms arent encrypted by default. It is also a UX nightmare and often times you cant decrypt your messages.
Matrix is not secure. You'd be better off with XMPP and OMEMO which has its own problems and isn't secure either. Sill better than Matrix.
"sitting on a vulnerability" does this mean he's discovered another exploit but refuses to disclose it essentially?