Please note: we do NOT control the domain simplexchat.org It might be a phishing site to collect the data (it has an exact copy of our website https://simplex.chat). We submitted the complaint to the domain registrar (GNAME). Do NOT download anything from simplexchat.org, obviously.

SimpleX Chat v6.0-beta.4 is released! It is stable to use, and please let us know any issues - any help testing it is really great! You can get beta version for iOS from Apple TestFlight, and for Android from GitHub or from our F-Droid repo (it's still in review in Play Store beta channel):

Download SimpleX apps

The final release will be published on 8/14, together with the announcements.

Talking at MoneroKon in 25 min! Watch the livestream here: https://youtube.monerokon.org/

Communication privacy and hard product choices:

SimpleX: Redefining Privacy by Making Hard Choices

We are upgrading the preset SimpleX relays to the new version - it is compatible only with the apps starting from v5.5.3 (released early February) - please upgrade to the latest version and ask your friends to upgrade too.

SimpleX Chat v5.7 released: - quantum resistant e2e encryption with contacts enabled by default. - forward messages without revealing the source and save them to private notes. - in-call sounds and switching sound sources. - customizable profile images - from square to circle. - better network connection management. Also, we added Lithuanian interface language to Android and desktop apps - thanks to our users! Read more:

SimpleX network: legally binding transparency, v5.7 released with better calls and messages

The post about SimpleX Chat v5.6 release with quantum resistant end-to-end encryption and also about how SimpleX network protocols will be moving to nonprofit governance: https:// simplex.chat/blog/20240323-sim plex-network-privacy-non-profit-v5-6-quantum-resistant-e2e-encryption-simple-migration.html Esra'a Al Shafei has just joined SimpleX Chat team to help us deliver these goals - welcome!

Updated "SimpleX Chat Privacy Policy and Conditions of Use" The updated document:

GitHub

simplex-chat/PRIVACY.md at stable · simplex-chat/simplex-chat

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱! ...

The changes:

GitHub

docs: update privacy policy by epoberezkin · Pull Request #3796 · simplex-chat/simplex-chat

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱! ...

TL;DR: - it clarifies that we develop software for communication network, and not a communication service. - it highlights the requirement of AGPLv3 license to publish any code modifications, and our commitment to run unmodified code. Let us know any comments / questions!

Improving repudiation (deniability) in SimpleX protocols Please send any questions/comments! We believe that repudiation (aka deniability) is very important for communications. See this discussion with Session CTO about it, for example:

X (formerly Twitter)

Kee Jefferys (@JefferysKee) on X

@SimpleXChat @startpage PCS and Deniability are not very practically beneficial properties, PFS is a little more useful, PCS/PFS rely on key compro...

X (formerly Twitter)

SimpleX Chat (@SimpleXChat) on X

@JefferysKee @startpage That "PCS and Deniability are not very practically beneficial properties" is a view that most security researchers and tech...

https://twitter.com/JefferysKee/status/1754762787119919587 https://twitter.com/SimpleXChat/status/1754840209936543977 Currently only a part of SimpleX protocol stack provides it – client-to-client e2e encryption, that includes double ratchet (aka Signal) algorithm in one of the layers. Client-relay protocol, on another hand, does not provide it, and as relays are chosen by the recipients, a modified relay can provide non-repudiation for sent messages, which is undesirable in the context of private communications. We believe there should be a possibility for digital off-the-record conversations, in the same way as it is possible for in-person meetings - while recipient can keep the memory and even transcript, it should not be a strong proof to a third party. This proposal adds repudiation to client-relay protocol by replacing cryptographic signature with authenticator (see this WIP document for the details: https://github.com/simplex-chat/simplexmq/blob/ep/cmd-auth/rfcs/2024-02-03-deniability.md). It is already mostly implemented and will be fully rolled out by v5.7. A more detailed post about repudiation importance and its acceptance in society and legal systems is coming.

The comments on comparisons of SimpleX with other platforms:

Reddit - The heart of the internet

SimpleX Chat v5.5 is released – with private notes and group history!

SimpleX Chat: free infrastructure from Linode, v5.5 released with private notes, group history and a simpler UX to connect.

Also in this release: - simpler UX to connect - paste SimpleX links to search bar. - improved message delivery and reduced battery usage. - fully encrypted files and media in the app storage. - reveal secrets in messages by tapping. - many other improvements. Downloads page:

Download SimpleX apps

#privacy #security #messenger

Thank you for all the support this year - it's been epic! These are the last releases this year! New in v5.4.2: - faster sending messages to groups. - lower CPU usage (except armv7 devices). - on iOS: improved notifications and smaller video sizes - many fixes! In addition to that, v5.5-beta.0 has: - new simpler UI for making connections. - optional visible history in groups. - reveal the secret texts by tapping. Get them via our downloads page:

Download SimpleX apps

Happy new year!

A talk about SimpleX Chat at BornHack 2023 conference by Peter Stuge:

SimpleX Chat - Simple Messaging With Unusually Good Privacy

This is a spontaneous talk about the relatively new (mobile apps released 2022) open source SimpleX Chat instant messenger protocol and s...

(recently uploaded) The talk was made when v5.2 was the latest, with lots of progress since: - local file encryption - desktop client - using mobile from desktop etc. Thank you!

Simplex Chat v5.4 is released – link mobile and desktop apps via secure quantum resistant protocol. Also in v5.4: - Many group improvements: - faster to join and more reliable. Once you upgrade to v5.4, join the new users' group and find other groups in SimpleX directory. - create groups with incognito profile. - block group members to reduce noise. - Better calls: faster to connect, with screen sharing on desktop. - Many other fixes and improvements. Read more in the post:

SimpleX Chat v5.4 - link mobile and desktop apps via quantum resistant protocol, and much better groups.

Install the apps via downloads page:

Download SimpleX apps

SimpleX Chat v5.4.0-beta.3! Share screen/window in desktop video calls! Lots of group improvements: - create groups incognito. - block some members just for you. - etc. Lots of fixes - more stable connections, more stable sending files, fixed file sharing and many crashes. Get it from GitHub, our F-Droid repo, Play Store beta and TestFlight for iOS:

Download SimpleX apps

Also, iOS and Android (aarch64 only for now – it didn't change for arvm7a devices) are built using the new version of the GHC compiler that should reduce the battery consumption a bit - please share how battery consumption changed for you, comparing with the previous version.

RIP Chat Control?

Historic agreement on #ChatControl: European Parliament wants to safeguard secure encryption – European Pirate Party

while I always believed that "Chat Control" as it was proposed would be dead on arrival, and unenforceable, it's always great to see common sense prevail. Some win for #privacy and #security of communications. The fight is far from over though.

Freedom.Tech

SimpleX Chat Review

Meet the new kid on the privacy messenger block, SimpleX Chat.

- a fantastic review of SimpleX Chat by @Seth For Privacy

SimpleX Chat is now available via AppImage hub!

SimpleX Chat

SimpleX - the first messaging platform operating without user identifiers of any kind - 100% private by design! Security assessment was done by Tra...

SimpleX Chat desktop for Windows is released in v5.4-beta.0!

GitHub

Release v5.4.0-beta.0 · simplex-chat/simplex-chat

New in v5.4-beta.0: when you delete contacts, they get notified now. It will be optional in further releases (and previous versions will not show ...

SimpleX Chat v5.3 is released – with new desktop app and local file encryption! Also in this release: - group improvements. - simplified incognito mode - better app responsiveness, stability and 40% reduced memory usage. - new privacy settings: show last messages & save draft. Added 6 new interface languages thanks to our users - Arabic, Bulgarian, Finnish, Hebrew, Thai and Ukrainian. Read more:

SimpleX Chat v5.3 released: desktop app, local file encryption and improved groups with directory service

Downloads page:

Download SimpleX apps

#privacy #security #messenger