this post was submitted on 03 Oct 2024
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I've been inspecting this topic quite a lot and I'm a little confused now. So, we have reasons not to use Signal, reasons not to use Matrix, there were also some claims about Session being a fraught. Briar is mostly activists related (not very suitable for daily use), XMPP lacks good clients and suffers from fragmentation of protocol standards implementation, SimpleX is too feature-incomplete (no UnifiedPush support, big battery drain on Android, very decent desktop client without any message sync). I can't say a lot about Threema or Wire, as I'm not very familiar with them.

So, my question is — is there any good private messenger at all? What do you think is the most acceptable option?

EDIT: In addition to my post:

All messengers have their flaws, I'm well aware of that. I was interested in hearing users' opinions regarding these shortcomings, not in finding the perfect messenger. I may have worded my thoughts incorrectly, sorry for that.

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[–] [email protected] 6 points 2 weeks ago (10 children)

That article in Signal is bogus. It is entirely based on speculation from how funding comes in, and also either ignores, or misunderstands how Signal fundamentally works.

The EFF recommends Signal, and it's one of the most secure ways to communicate.

https://ssd.eff.org/module/how-to-use-signal

You can make your own decisions, but if you just grab any random arguments, you'll find a reason to doubt everything.

[–] [email protected] 1 points 2 weeks ago (1 children)

The US-state-department funding is important sure, but you also ignored every other point in that article.

[–] [email protected] 1 points 1 week ago (1 children)

Do you make the same criticism of TOR?

[–] [email protected] 1 points 1 week ago

That rabbit hole goes very deep, but I'm not knowledgeable enough to speak on it. It could very well be a crypto AG style honey-pot, or already cracked tech, that we might not know about for years to come.

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[–] [email protected] 4 points 2 weeks ago (1 children)

The German technology blog Kuketz has a comprehensive overview and comparison of all major messenger services.

[–] [email protected] 2 points 2 weeks ago

Thanks for sharing. Very useful.

[–] [email protected] 4 points 1 week ago (1 children)

XMPP clients are fine albeit it all, as many as they are, slightly different as is the nature of the protocol. This just means there is value in contributing to existing clients, creating new clients, or embracing progressive enhancement (which most do for example with emoji reactions just being a quoted text reply & so on) & complete feature parity is a fool’s errand if you want an exensible protocol with diversity & experimentation in the community. With the broad exception of the Conversations Compliance, there isn’t a flagship client & instead the best ideas come to the most used or most innovative clients. I use Cheogram, Profanity, Gajim, Dino, Movim at different times (& would love to create my own). The protocol is stable, healthy, & ready for proposals for improvement.

If I compare this to the more-expensive-by-all-metrics-to-run Matrix, if it ain’t Element, you gotta problem since a vast majority of users are on it & using all of its features & no other client has anything near parity but are expected to have parity instead of allowing things to sometimes be gracefully missed or shown in a less than ideal manner as acceptable. This hurts experimentation. Good luck trying anything similar to GDPR when all nodes are design & required to duplicate all messages & attachments for all users to every server anyone in it comes from.

The only real gotcha is the same gotcha as Matrix when using multiple clients with double-ratchet encryption (ala Signal) is that clients will expire keys that haven’t been seen in a while & is hard to get both devices retrusting one another. Turning it off & on again rarely works & requires fiddling on both ends sometimes. I really should just use PGP for encryption more often…

[–] [email protected] 1 points 1 week ago (1 children)

The problem is that iPhone has some weird shit about push notifications and none of the high security XMPP clients I have tried seem to support them.

[–] [email protected] 1 points 1 week ago

XMPP doesn’t need notifications per se since it already has a connection to the client. Since it works for all other OSs to hook into this & display a notification, I don’t even want to know what restrictions Apple has on iOS that prevent such basic behavior. Apple digs its own grave here. What’s worse is I want to say “go get a Android phone, dummy” to a ‘normie’ but the stock OS on any Android phone is going to be on aggregate a worse privacy situation unless you would have to be ready to teach how to unGoogle it to the extent they would tolerate.

Linux phone when?

[–] [email protected] 3 points 2 weeks ago

Almost all those can be self-hosted, and built from source, so matrix, xmpp, simplex, are fine. Don't use anything that's uses a centralized server in a five eyes country, like signal or threema.

[–] [email protected] 3 points 2 weeks ago

For me SimpleX does everything I need. Unified push would be nice, and would address battery usage. I don't need or want message sync, so that's not an issue.

They all have tradeoffs, so it's just a matter of your priorities. For instance I'm OK with the higher battery drain because it's not using Google.

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

Simplex.chat

No identifiers, pfp, FOSS, can route through tor.

Or host your own matrix or xmpp server.

[–] [email protected] 2 points 2 weeks ago

Snikket is an attempt to solve the XMPP issues, or at least to reduce them, single all-in-one XMPP server distro and clients across platforms, and since it's self-hosted no one should get their hands on your data (in normal circumstances).

That said, the saying goes "Perfect is the enemy of Good". Just because a solution is not perfect doesn't make it unusable, any of those options you mention full of problems are a helluva better than FB Messenger or plain SMS for example. Depending on your threat model they might be more than enough.

[–] [email protected] 2 points 2 weeks ago

So, we have reasons not to use Signal, reasons not to use Matrix

yes, nearly all possible things in the world have been argued by someone somewhere already

[–] [email protected] 2 points 2 weeks ago (1 children)

You could try Molly if you don't like Signal

[–] [email protected] 1 points 2 weeks ago

I didn't say I don't like Signal, Matrix or anything else. I just provided links to accompany my question.

[–] [email protected] 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

XMPP lacks good clients and suffers from fragmentation of protocol standards implementation

  • For Android: Conversations is excellent, also on F-Droid if you don't want to use the Google store.
  • For iOS/MacOS: Siskin or iOS/MacOS: Monal.
  • For Linux/Windows: Gajim or Linux: Dino.

"Protocol fragmentation" is not a valid complaint about XMPP -- it's like complaining that ActivityPub is fragmented; but that's not a problem: you use the services (Mastodon, Lemmy, Kbin, etc) built with it which suit your needs, mostly interacting with that sector of the federation (eg, Lemmy+Kbin), but get a little interoperability with other sectors as a bonus (eg, Lemmy+Mastodon).

[–] [email protected] 1 points 1 week ago

Do those ios clients support push notifications?

[–] [email protected] 1 points 2 weeks ago

jami has so much potential. just wish it ran a bit more reliable

[–] [email protected] 1 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

Conversations for android is an example of a good XMPP client.

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[–] [email protected] 1 points 2 weeks ago
[–] [email protected] 1 points 2 weeks ago

Kind of limited due to there not being an iOS version, but Briar is pretty decent. It was made to be usable in repressive areas by press and other groups, as well as in areas where bad weather has taken out cell and regular wifi. Can be used with phone data, but also offline via ad-hoc wifi and bluetooth. But stuff like Signal and SimpleX are more overall useful to more people (and I think SimpleX also supports offline local immediate area of each other like wifi and bluetooth but I don't remember atm).

[–] [email protected] 1 points 2 weeks ago

Depends a lot on who you're talking to, and your, and their threat models. For many, signal provides pretty good protection, which brings us to a salient point, anything that actually provides good security will attract plenty of negativity, often from state level actors who feel (are) threatened. If you're playing at that level, adam_y is right, dead drops and one time pads. Presuming lesser threat, signal beats telegram and FB etc. Email is plaintext unless proton to proton, encrypted email is fine (look at PGP) and indeed if you encrypt at home before sending it's pretty much a dead drop anyway, as long as the other party has a key, and I'm wandering off the beaten path.

Seems you want a secure messenger that works and are scared by random crap because you don't have the relevant knowledge to decide (spoiler, very few do, and it's insider knowledge, the world is imperfect), fair enough, but don't let perfect be the enemy of good. As long as you're willing to give up your phone number, Signal is well regarded (exchange privacy for security, you decide). But yeah, no perfects, world imperfect, trust hard, deal ;)

[–] [email protected] 1 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Wire is the best for security (it literally won't let you send messages unencrypted), cost (its free), privacy (no phone number required), and usability for the masses (Foss client on all the platforms, messages sync between each client like you'd expect)

I haven't found anything that checks all those boxes other than Wire (though I do wish we had other options that came close)

https://Wire.com

[–] [email protected] 0 points 1 week ago* (last edited 1 week ago) (1 children)

Simplex Chat is better in many ways. The biggest reason is that you can self host the server.

[–] [email protected] 1 points 1 week ago

And it is worse in many ways

[–] [email protected] 1 points 2 weeks ago (3 children)

DeltaChat. I don't use it myself because it's built on electron (which basically excludes 99% of modern chat clients); but as it's technically an email client turned into a chat client, we can assume you're protected by PGP when writing to most users, and with the added effect of not needing to convince anyone to install anything since from their end it's just an email.

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[–] [email protected] 1 points 2 weeks ago (1 children)

People say this over and over "depends on your threat model" and yet people seem to have a hard time understanding that. Your threat model is "who is your adversary and what he is willing/able to do". Your security goal is what do you want to keep from your adversary.

As others said, if you are an activist or sth important, perhaps you might want to build a working knowledge of cryptography yourself. If you just want META not being able to see your NSFW chat with your romantic partner Signal might be more than enough. In fact, people way more relevant than me also suggest that Signal is good even for bounty hunter vulnerability reporting.

Having said that, what bugs me most is that people think the instant messaging format as suitable for everything: activism, jobs, crimes, broadcasting 1970's prog rock for extraterestrials , whatever lmao. Do you really want to use your phone for all that? Like, just carrying the phone around in the first place nullifies your other precautions, for all advanced threat models beyond privacy of non-critical social messaging.

Persistent/resourceful adversaries can eventually get to you, using a set of penetration and intelligence techniques, which means, if you are involved, the convenience of messaging your partners in crime from the phone in your pocket while waiting for a bus is a convenience you probably can't afford.

[–] [email protected] 1 points 1 week ago (1 children)

It's impossible to escape the surveillance of those three letter agencies. We only got a brief glimpse into the other side of the curtain back in 2013, and there is no idea how advanced their surveillance technologies are, so why bother for a normie?

It's also painstaking if not impossible to wipe all your metadata from the internet, which can later be mined to infer personal data and sold by data brokers. Not to mention that people have jobs and use their credit cards, no way even to hide the most important personal identifying information.

So using Signal, despite being centralized, is not too bad at all. Very few people can totally sacrifice convenience for privacy.

[–] [email protected] 2 points 1 week ago

Not to mention that people have jobs and use their credit cards, no way even to hide the most important personal identifying information.

Exactly, this is a lost cause. If you participate in society your essential data are simply out there. For most people the task is to minimize their footprint. If we are talking about evading mass surveillance, then we should take for granted that the person will be to one or another degree marginalized, or lead a fringe lifestyle.

[–] [email protected] 0 points 2 weeks ago (1 children)

Just out of curiosity: why is nobody recommending Tox?

[–] [email protected] 1 points 1 week ago

It lacks a security audit

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