I don't understand why do you seem so upset,

Because you're spreading misinformation to score marketing points and spreading misinformation about secure messengers gets people killed.

I don't understand why do you seem so upset, #DeltaChat has received several REAL PROFESSIONAL INDEPENDENT security audits, all listed here: delta.chat/en/help#security-au

So, none after this particular class of attack was discovered and therefore none that include this in the threat model?

Delta Chat: FAQ

What is Delta Chat? Delta Chat is a reliable, decentralized and secure instant messaging app, available for mobile and desktop platforms. Instant creation of private chat profiles with secure and i...

^delta.chat

#DeltaChat is for private chatting, so you normally don't put your link anywhere publicly, you could create a dedicated profile for public interactions tho, which, unlike in signal, it is super easy to do and you can have as many as you want,

Okay, so your use case for 'private chatting' excludes journalists publishing contact information for whistleblowers? It excludes union organisation? It excludes protest organisation?

I guess that's fine, but maybe don't claim to be operating in the same space as Signal then.

and notice the use case I am talking here is family chat, not business and public interactions, that is why I said "keep your family safe" I am talking about family chat solution here

Then you need to learn about the concept of an anonymity set. If you have one mechanism for talking to your family and another different one for talking to your union rep, it's really easy for a passive adversary to track when you suddenly start using a different mechanism for high-value conversations.

#DeltaChat is for private chatting, so you normally don't put your link anywhere publicly, you could create a dedicated profile for public interactions tho, which, unlike in signal, it is super easy to do and you can have as many as you want,

and notice the use case I am talking here is family chat, not business and public interactions, that is why I said "keep your family safe" I am talking about family chat solution here

@david_chisnall

> rather than just say ‘I don’t understand this attacks but the researchers who published it didn’t bother trying to attack the protocol I use and so I’m sure it is secure!’ That is exactly the attitude to security that makes me distrust DeltaChat.

I don't understand why do you seem so upset, #DeltaChat has received several REAL PROFESSIONAL INDEPENDENT security audits, all listed here: delta.chat/en/help#security-au…
can you provide a similar list of REAL sec. audits for Signal?

Delta Chat: FAQ

What is Delta Chat? Delta Chat is a reliable, decentralized and secure instant messaging app, available for mobile and desktop platforms. Instant creation of private chat profiles with secure and i...

^delta.chat

"Tool allows stealthy tracking of #Signal and #WhatsApp users through delivery receipts"

cyberinsider.com/tool-allows-s…

Another privacy vulnerability caused by the dependency on phone numbers.

In #ArcaneChat (and other #chatmail clients like #DeltaChat) you don't need a phone number (or any private data at all!) to register, so such attacks are simply impossible, keep your family safe, join arcanechat.me

Tool allows stealthy tracking of Signal and WhatsApp users through delivery receipts

A new tool named Device Activity Tracker exposes a privacy flaw in WhatsApp and Signal that lets attackers covertly monitor user activity.

^{Alex Lekander (CyberInsider)}

With DeltaChat the message "Establishing guaranteed end-to-end encryption, please wait" happens because the other end has to accept my chat?

@delta

#deltachat #askfedi

Trying #DeltaChat for a few days. But it cannot fulfill one mandatory use case for me : synchronization on more that 2 devices.

Sorry @delta, but for now, I'll remain with @signalapp and @session (and XMPP of course 😉) !

Good job for your work anyway. It's promising.

This week in #FDroid (TWIF) is live:

* @marcprux caught on video
* Schedule your #39C3 #CCC visit
* Switching relays in #ArcaneChat #DeltaChat
* #Thunderbird drops #MaterialDesign3 🤯
+ 8 new apps
& 156 updates
- 1 app archived

Click play: f-droid.org/2025/12/11/twif.ht…

Keeping it open (video version) | F-Droid - Free and Open Source Android App Repository

This Week in F-Droid TWIF curated on Thursday, 11 Dec 2025, Week 50 F-Droid core We had great reach with our “F-Droid and Google’s Developer Registration Dec...

^f-droid.org

I noticed the upcoming chatmail ‘relays’ feature in #deltachat. Changing the relay in the app (version 2.33) seems really easy, fantastic!

@delta I was wondering (for a friend) if there will be any publicly available relays published as a *#tor #onion service* as well? In combination with the app’s proxy support this would be awesome for any user’s #privacy.

#deltachat PSAs regarding the last 24 hours:

1) If you messaged someone about 20-30 hours ago, and did not get an expected response/receipt better "resend" (long-tap or right-click the message to resend). Unfortunately, not all queued messages at the crashing nine.testrun.org server made it to the new one.

2) 2.33+ app releases are rolling out, supporting using "multiple relays" so that failing relays (like happened above) will not cause lost messages anymore. See support.delta.chat/t/how-to-mi…

in speaking with my colleagues at @delta i began to test multi-transport (multi-relay) functionality.

early testing looks very good on android, just now we wait until all client engineers bring core library into parity.

we are close to being unstoppable.

now is an amazing time to try #deltachat

interested in running #chatmail relay?

chatmail.at/ github.com/chatmail/relay

or contact me. i run several and am happy to help you onboard!

I really like the idea of #deltachat but I never tried it until now.
It just seemed sooo uninteresting. Why? Because of the graphical and #UI branding.

I'm not even a huge UI fan, I use CLI apps 90% of the time. But the mundane and gray logo, the gray UI, every graphical element of it seems so uninteresting.
The screenshots look like they are from 2010s.

I think upping their design game will really boost users.
Delta is a unique idea on the backend, give users a unique experience in the frontend too.

RE: chaos.social/@thefinalstrawrad…

Another nice surprise! A careful discussion and appreciation of our almost 8-year long running efforts, and its #deltachat and #chatmail artifacts. The "Signal contingency plan" comes complete with podcast, website and zine!

The Final Straw Radio (@thefinalstrawradio@chaos.social)

Attached: 1 image Our chat with Mary & Fanny, two independent technologists, on contingency for "what if Signal were blocked in the US" and their suggestion: @delta https://thefinalstrawradio.noblogs.

^{The Final Straw Radio (chaos.social)}

Just reading up on #DeltaChat and it does look interesting as a possible signal alternative. Even deploying your own relay seems easy too. Anybody here using it and has any positive feedback ? I mean share if you've negative too as it'll all be gratefully received by all.

delta.chat/en/

Delta Chat: Delta Chat, decentralized secure messenger

Delta Chat is a decentralized and secure messenger app 💬 Reliable instant messaging with multi-profile and multi-device support ⚡️ Sign up to secure and interoperable chatmail relays 🥳 Interactive ...

^delta.chat

@ambiguous_yelp

> Quantum resistance is important now because of an attack vector called Store Now Decrypt Later

that would apply in a centralized server with access to all messages, but with #DeltaChat you can use a trusted server or your own server and then the attacker can't "store now" because communication between you and your delta chat server is already encrypted with quantum-resistant encryption

A few things #deltachat apps are doing positively different from #Signal apps

- easiest onboarding ever; not depending on phone numbers or other private data

- support for multiple chat profiles/identities

- decentralized servers, not depending on US-based GAFAM etc.

- migration from one app/platform to any other

- easy multi-device support for any chat profile

- developers have chances to get their PRs merged :)

- mini-apps support via webxdc.org

anything missing?

webxdc - web apps shared in a chat

no logins, no coins, no platforms 🎉

^webxdc.org

this is so cool! I ported to #webxdc TIC-80 #fantasy #computer for making, playing and sharing tiny #games

you can import/export files with add/get commands!

with this you can create #retro games in #lua, #fennel, #python, #ruby, #javascript etc and play/share them with friends as in-chat apps in #DeltaChat / #ArcaneChat

I would like to expose the webxdc API to TIC-80 games so they can do networking/multiplayer and send in-chat messages

#fantasyconsole #console #retrogaming #tic80 #pico8

• Yes, please elaborate in the comments. (0%, 0 votes)
• No, and wouldn't join one either (50%, 1 vote)
• No, but I'd love to join one (50%, 1 vote)

#Telegram has a nice and fast UI, granted.

But the 1 billion people using TG are at risk because of its big central database that any state security service craves for. Moreover, several anonymization proxy-bot offerings were hacked in 2024, identifying millions of users and content.

#deltachat builds anonymization directly into the app and has pervasive end-to-end encryption. #chatmail relay operators can sleep well, knowing they have nothing. Ergo, E2EE is good for any operators sleep! :)

I love #deltachat at first-sight few days ago, like I was love #telegram at first sight around twelve years ago.

Only one thing I missed on deltachat now, there's no simple library to create deltachat bot using #nodejs, like telegraf for telegram.

"if only there was a #chat app that had end-to-end #encryption, without phone numbers or any private data required for registration, #decentralized, easy to use, with multi-profile and multi-device support and available in all platforms"

#DeltaChat #ArcaneChat #e2ee

You forgot #DeltaChat, which is an excellent alternative to WhatsApp.

@delta

from a random community chat: "#Telegram secret chats exist so you can share your #deltachat QR/link to get off Telegram 😇"

In related news, Arte published a well-done documentary film about "Telegram, the dark empire of Pawel Durov" up (german audio only) arte.tv/de/videos/122721-000-A… -- it's a dive into various TG happenings during the last decades, biographical origins of telegram development, the durov brothers etc..

Telegram - Das dunkle Imperium von Pawel Durow - Die ganze Doku | ARTE

Letzte Bastion der Meinungsfreiheit oder Spielwiese für Extremisten und Kriminelle? Am Messenger-Dienst Telegram scheiden sich die Geister. Genau wie an seinem mysteriösen Gründer, dem Tech-Milliardär Pawel Durow.

^ARTE

Great news: DeltaTouch (@deltatouch), a #DeltaChat client created for #UbuntuTouch, is now available on #Flathub!

flathub.org/en/apps/page.codeb…

We've updated our listing linuxphoneapps.org/apps/page.c… accordingly, and would love to see more apps for Ubuntu Touch land on Flathub (and thus be available for #postmarketOS, #Mobian, #Droidian) - the flatpak manifest may help github.com/flathub/page.codebe… .

Install DeltaTouch on Linux | Flathub

Decentralized, secure messenger app, powered by the chatmail core library

^Flathub

putain on croyait être tranquille un moment, mais il est repassé par la fenêtre et on est bien baisés :
Chat Control, le retour !

euroweeklynews.com/2025/11/29/…

(en passant donnez à @LaQuadrature on va avoir besoin de se défendre, là)

#UnionEuropéenne
#UnionFasciste
#Tech
#Chat
#Controle
#Messagerie
#Surveillance
#ViePrivée
#Chiffrement
#BackDoorPourLesGentilsBienSûrMonCul
#TousSuspects
#DeltaChat

Chat Control approved: Certain EU countries will see your private messages. Is yours on the list?

EU governments have finally agreed on a controversial new law that gives a backdoor to reading text messages and viewing photo messages

^{Adam Woodward (Euro Weekly News)}

DeltaTouch is finally available on Flathub, made possible by @ell1e and @d2weber. Thank you very much 🥰

Thanks also to the folks at @flathub for the excellent review and for providing this wonderful platform.

flathub.org/en/apps/page.codeb…

Please check it out and let us know if you run into issues, preferably by reporting it in this forum thread: support.delta.chat/t/feedback-…

#DeltaTouch #DeltaChat #Flathub #flatpak

Install DeltaTouch on Linux | Flathub

Decentralized, secure messenger app, powered by the chatmail core library

^Flathub

• Delta Chat (15%, 2 votes)
• Signal (61%, 8 votes)
• Threema (7%, 1 vote)
• Whatsapp (15%, 2 votes)

Version 2.25.0 is available in the OpenStore and as snap 🎉

We're inching closer to feature parity with the official apps as this release brings the "Apps & Media" overview for chats and contacts that has been missing so far. In addition, a number of bugs have been fixed. For the complete list of changes, check out the changelog: codeberg.org/lk108/deltatouch/…

As a special treat, packages for #UbuntuTouch 16.04 (xenial) have been prepared. The OpenStore does not accept updates for UT xenial anymore, get the xenial update from codeberg.org/lk108/deltatouch/… instead.

#DeltaTouch #DeltaChat

v2.25.0-xenial for Ubuntu Touch 16.04 (xenial) ONLY - !! do not use for other platforms !! - lk108/deltatouch

This release is for Ubuntu Touch 16.04 (xenial) only. **IMPORTANT**: Please backup your profile(s) before installing this update, otherwise it is not possible to go back to the previous version 1.16.2.

^Codeberg.org

My vps 1cpu stopped running reliably, thanks to #matrix using huge amounts of disk

Setting up #xmpp with a reverse proxy is undocumented.

#Deltachat server hosting script doesn’t work with the latest python

I’m really struggling for #selfhosted chat options.

#databag #nostr

• Databag (0 votes)
• Nostr x0chat (0 votes)
• Compile deltachat’s chatmail myself (0 votes)

OF COURSE he can't never be missing. Especially NOT at this time of the year.

chat.maikel.dev/

#DeltaChat #MacaulayMacaulayCulkinCulkin

The Relay of Maikel: Home

The Chatmail Relay run by Maikel

^{chat.maikel.dev}

@kolev I love #XMPP but not having a single cross-platform fully-featured client makes onboarding normies much more difficult, hindering adoption greatly.

Nothing wrong with being the #Ubuntu or #LinuxMint of decentralised #FOSS messengers... people who need the Archlinuxes and BSDs will find them in time.

I have managed to onboard lots of people to cross-platform messengers like #DeltaChat, #ElementMessenger and #SignalApp, but not a single person to XMPP. Cross platform apps also make switching OSes eaiser, e.g. migrating from Windows to Linux, or Android to LinuxMobile.

Limiting myself to deltachat, updated the link in the BIO, learnt to run my own ChatMail relay. Life is GOOD!

i.delta.chat/#AE61572038C0E988…

#Deltachat