SimpleX - the first messaging platform without user identifiers of any kind - 100% private by design!
Security assessment: https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html
| website | https://simplex.chat |
| github | https://github.com/simplex-chat/simplex-chat#readme |
| donate | https://github.com/simplex-chat/simplex-chat#help-us-with-donations |
SimpleX Chat is #1 messenger recommended by Whonix!
I'll be presenting a review of some metadata protections implemented by instant messengers at Pass the Salt 2025!
The studied messengers are @signalapp @olvid_io @matrix and @simplex
https://cfp.pass-the-salt.org/pts2025/talk/7K9MEV/
I'll be in touch with the vendors to share with them what I'm gonna say about them, to give them the chance to respond to my observations.
This talk covers the obvious issue of long-term identities and the construction of the social graph and how some protections supposed to thwart the social graph recovery are flawed. Some of these attacks are publicly documented and still unmitigated by those affected by them. This talk also dives into less obvious metadata leaks, such as traffic correlation and ciphertext correlation. Finally it also points out that some of the studied instant messaging solutions do not protect all messages and leak metadata to third parties via attachment upload, push notifications, backups and voice/video calls. Sorting out which instant messaging application is the best is a non-goal for this talk.
The comparison of 6 messengers in c't magazine (Heise.de)
https://www.heise.de/select/ct/2025/9/2505715264990543311
They ranked SimpleX Chat as the best for privacy and security!
Ist es Zeit, sich von WhatsApp abzuwenden? Aber wohin? Zu Signal oder lieber zu einem Dienst mit Servern in Europa? Oder wäre vielleicht doch ein Messenger besser, bei dem man Server auch selbst betreiben kann? Wir vergleichen sechs Messenger mit unterschiedlichen Prioritäten und Konzepten, gemeinsam ist ihnen die Ende-zu-Ende-Verschlüsselung.
A fantastic episode of @sr podcast that we sponsored – very happy to support your work!
Attached: 1 image And we wanted to give a massive thanks to @simplex@mastodon.social for supporting the podcast! They're a private, E2EE, free messenger without any unique identifiers: https://simplex.chat/ Give them a shot! We're proud to show-off such a cool, well-respected service 🌟
And we wanted to give a massive thanks to @simplex for supporting the podcast!
They're a private, E2EE, free messenger without any unique identifiers: https://simplex.chat/ Give them a shot! We're proud to show-off such a cool, well-respected service 🌟
v6.3 of SimpleX Chat is released:
- preventing spam and abuse in public groups.
- group improvements: mention other members, improved performance.
- better chat navigation: organize chats into lists and jump to found and forwarded messages.
- privacy and security improvements: chat retention period and private media file names.
Also: server builds are now reproducible!
Our privacy policy also:
- includes a commitment to run the published code,
- re-confirms the absence of any compulsory requests.
Thanks to all users for suggesting these changes.
The full text: https://simplex.chat/privacy/
Changes: https://github.com/simplex-chat/simplex-chat/commit/7471fd2af5838dc0467aebc570b5ea75e5df3209
3. Clarified some definitions:
- "aggregate statistics" explicitly excludes any stats that can be related to particular users.
- the content that can be removed changed from "identified illegal content" to "illegal content identified in publicly accessible resources".
These changes do not change how we work: we never had user-related statistics, and we technically and legally cannot access private chats. 👇
We updated SimpleX Chat Privacy Policy & Conditions.
It's more Power to the People!
1. Added content license in groups, and stated that NO LICENSE is granted to the server operators or ourselves.
We do not ask for ANY license to YOUR content!
2. Added the conditions of access to preconfigured servers via modified 3rd party applications.
The previous policy version prohibited it, unintentionally.
Thanks to the users developing apps for suggesting it! 👇
Unedited livestream is here: https://www.youtube.com/watch?v=DMOLtj7Q3Oo
We will post an edited version tomorrow!
The animated demo of how SimpleX network private message routing works is at 7:45
It protects both the IP addresses and session information of the users, preventing server operators from observing who talks to whom.
F. Maury ⏚
Surveillance Report
