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Items tagged with: DeltaChat
Hello @delta
I'm puzzled, the #DeltaChat Android app (from the Google play store, 2.34.0) doesn't offer to set a video chat instance
The version 2.11.0 from the FDroid store does.
Is this intentional?
The first one is set to English, the FDroid one to German
Side problem: while the web version of #FDroid also shows me 2.34.0 the "app store" on #EOS always downloads 2.11.0. It even offers an update but the version stays on 2.11
we welcome scrutiny but prefer co-ordinated security-disclosure via
github.com/rpgp/rpgp/security/… and
github.com/chatmail/core/secur…
We'd be surprised if you find a "0day" exploit against standard #deltachat users but certainly prefer you finding something than eg putin/khomeini-aligned hackers.
what I don't get is why you take this opportunity to attack #pgp in general, like taking the opportunity to push for some agenda, the site is called gpg.fail, GPG not PGP, most of the problems are related to gpg or some C code implementation bug, or using gpg and others in the command line and getting tricked by some ansi printing in the terminal, how that translates to "let's kill pgp"? ex. none of the listed problems affect #DeltaChat at all
(I was present in the gpg.fail talk btw)
@wmd there are many computer people pretty happy with #deltachat ... who value precisely that they can use it with their families and friends easily, though.
With a lot of alternative software, the complaint is that it is only usable by specialists. We are pretty happy that in our case it is more the specialists who need to work harder and read the FAQ to understand that some lines of traditional thinking about eg email and pgp do not apply delta.chat/en/help
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
Don't think so much! 😉
Hey guys, I am reviewing delta chat as a signal alternative. Does anyone have any best practices recommendations?
So far I like that you can add all of your devices under one profile so we don’t need the separate phone numbers silliness signal has
я другие мессенджеры тоже тестировал #Session / #SimplexChat / #Signal ну такие себе,у каждого есть свои жёсткие минусы
When Big Tech clouds fail, are censored, or collude with the (US) government, which would you choose for private messaging?
#privacy #security #decentralization #securemessaging #matrix #xmpp #simplex #deltachat #signal #poll #polls #askfedi
- Matrix (10%, 8 votes)
- XMPP/Jabber (24%, 18 votes)
- SimpleX (2%, 2 votes)
- DeltaChat (62%, 47 votes)
Relax 😎! GPG is not OpenPGP!
Yesterday, vulnerabilities were published gpg.fail but they don't affect #deltachat or other #chatmail clients because
A) We never used #gnupg for anything; we use the modern #rustlang #openpgp implementation @rpgp, security audited multiple times.
B) #openpgp is fine, as modernized in #RFC9580, which already warns against several #gpgfail issues (gpg didn't implement that spec)
Please spread the word that #gpg is not #openpgp ... Thanks! #39c3
Quite a few of #deltachat #chatmail and #webxdc folks are already and will be around #39c3 -- on-site you can join a group chat (or send us a DM upfront) where we announce dynamically scheduled sessions. You'll find us mostly around Komona but also other places ... for more info:
PSA: Influenza is spreading heavily currently, and 30% of people are infectious without symptoms. Please maintain hygiene and at best test yourself before entering premises. Thanks!
Cykeltutten har fået en kanal på Delta Chat.
Der er det muligt at følge med i hvad der sker og blive inviteret til arrangementer, byggedage og andet.
Scan QR koden for at følge, eller brug linket her:
i.delta.chat/#62DA02C93563C10A…
PS. har du ikke Delta Chat, så tager det 30 sekunder at downloade og kræver hverken dit tlf. nummer eller email.
> My question is rather: How can #XMPP market itself better to people who want to build instant messaging solutions.
my humble opinion: I would still pick #deltachat / chatmail core to build my client if I had to start from scratch today, with #xmpp I just have a protocol, with delta chat I don't actually need to use the #email protocol at all, only the core library that takes care of dealing with networking and #encryption while all I have to do is to create the UI
The big plus of #DeltaChat is that the infrastructure is already there. Infrastructure is a big part of the problem. And obviously using mail for that is only for people born before 2000.
Second is branding: When people hear #XMPP they hear 20 years of failure of implementing robust solutions both server-side and client-side. People just don't know that after 20 years there now are server and client solutions really working.
I have a lot of respect for #DeltaChat (@delta); By all accounts they provide a good looking client and a homogenize experience across platforms. Users absolutely don’t need to care about the underlying protocol!
However there is no way, shape or form in that IMAP+Submission is a more suitable stack for instant messaging than #XMPP.
Startversuch aktueller Version von DeltaChat
[11469:1214/134139.208764:FATAL:sandbox/linux/suid/client/setuid_sandbox_host.cc:169] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /opt/deltachat-desktop-2.33.0/chrome-sandbox is owned by root and has mode 4755.
Trace/Breakpoint ausgelöst (Speicherabzug geschrieben)
Ich lasse KEINE Executables mit SUID root auf meinem System zu
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
> 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)
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…
How to migrate your profile to another relay (version 2.33)
Let’s say you have initially created a profile on the default relay and want to migrate away from it. Update at least to 2.33 on all your devices: Help testing upcoming Delta Chat 2.33.Delta Chat
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!
Chatmail
Chatmail provides FOSS infrastructure for interoperable, secure, speedy and reliable end-to-end encrypted messaging. Check out clients as Arcane Chat, Bots or Delta Chat today!chatmail.at
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: 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
> 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