It seems like I constantly see “X secure messaging option is actually bullshit because it was purchased by Dr. Evil and Y is actually just e-mailing your messages directly to Xi Jinping.”
Is there an authoritatively “best” one I can just…download and setup easily? Is Signal good? Or do I need to solder a Raspberry Pi to the flux modulator of my home Linux NAS GUI, etc…?
There is no best, each has their merits and drawbacks.
If you were to pick a messaging app I would go with Singal because they give good transparency to users, while giving frustrations to governments wanting data.
Only downsides of Signal are 1. It’s centralized 2. You have to sign up with a phone number.
It’s secure, cross platform, and easy to set up and use.
Probably most importantly, it’s a similar experience to using other popular texting apps and the set-up experience is familiar to anyone singing into any big-brand-name app, making it a relatively easy sell to non-techies.
Signal or XMPP
Its best not to use a phone at all if you can help it.
The keyboard app on most phones that are default still gives info to apple/google. So even if you use signal, the data goes over.
You can side-load apps that take phone keyboards over (even better if you don’t use base android OS at all). But I dont know your situation.
I know your joking but the most secure that is still usable is probably an encrypted home server and using something like irc/XMPP. A pi with yunohost can do wonders. You can use the converse app on the phone to hook into that. It’s auto encrypted if you go that route.
Security is a spectrum so you have to chose how much inconvenience is best for your situation.
If self-hosting and “Warning, some assembly required” isnt an issue, Matrix - Synapse. I spooled that up in my home lab recently and im slowly moving my group chats over to it.
Am I the only one here who has heard of Olvid?
For everyone suggesting signal, have a read here and then decide for yourself.
https://github.com/signalapp/Signal-Android/issues/8974
ETA: when I say “decide for yourself” I mean exactly that. I don’t think all the stuff written in there is true, but some is. You should make a decision based on what you think about those comments, not trust them blindly. But at least you can make an informed decision.