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Reposted by Phoenix R&D

Air @air.ms · 22/09/2026

New release: Air v0.22.0 Air is a new private messenger based on the Messaging Layer Security (MLS) protocol. ✨️ New features: - Animated image behavior can now be changed - Warning for expired versions of the app

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Reposted by Phoenix R&D

Air @air.ms · 01/09/2026

New release: Air v0.21.0 Air is a new private messenger based on the Messaging Layer Security (MLS) protocol. Invite-only for now. ✨️ New features: - Share images and text into Air from other apps (iOS and Android) - Spanish and Portuguese translations - System messages are now translated

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Reposted by Phoenix R&D

Air @air.ms · 18/08/2026

New release: Air v0.20.0 Air is a new private messenger based on the Messaging Layer Security (MLS) protocol. Invite-only for now. ✨️ New features: - Many design changes to prepare for desktop support - More preparation for multi-client support - Notifications are grouped (Android)

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Reposted by Phoenix R&D

Air @air.ms · 09/07/2026

New release: Air v0.18.0 Air is a new private messenger based on the Messaging Layer Security (MLS) protocol. Invite-only for now. ✨️ New features: - You can now mute chats - Preparation work for multi-device

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Air @air.ms · 17/06/2026

We’re hosting a casual community get-together for friends of Air. If you’re in Berlin on Wednesday 24, feel free to swing by and meet other Air users and our team. We look forward to seeing you! 👋

Phoenix R&D @phoenixrd.bsky.social · 27/05/2026

OpenMLS, our implementation of the Messaging Layer Security (MLS) protocol, has undergone a security audit conducted by @srlabs.bsky.social and sponsored by the @sovereign.tech. The security audit marks an important step toward making OpenMLS more secure. More details in our blog post:

blog.phnx.im

OpenMLS independent security audit: results, history, and what comes next

OpenMLS, our implementation of the Messaging Layer Security (MLS) protocol, has undergone a security audit. The audit is an important milestone for OpenMLS. In this post, we share the results and take...

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Reposted by Phoenix R&D

Air @air.ms · 18/05/2026

We will be at @re-publica.com over the next 3 days and brought some invitation codes for Air! ✨ Reach out to @julianmair.com if you’d like to get early access to Air. #rp26

Air invitation cards in front of the re:publica26 banner.

AIR
- No phone number or email
- End-to-end encrypted
- No metadata retention
- Self-hosting capable
- Post-quantum secure
- Based on Messaging Layer Security (MLS) and open standards
- EU-based
- Free and open-source

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Phoenix R&D @phoenixrd.bsky.social · 03/02/2026

🚨Der vorgelegte Gesetzentwurf zur "IP-Adressspeicherung" geht weit über vergangene Gesetzesentwürfe hinaus, die von deutschen und europäischen Gerichten als verfassungswidrig eingestuft wurden, und läuft völlig der eigentlichen Idee von Datenschutz und Datenminimierung zuwider.

linkedin.com

Unsere Stellungnahme zur geplanten "IP-Adressspeicherung" – Gefährdung der digitalen Sicherheit und Souveränität Deutschlands

Sehr geehrte Frau Bundesministerin Hubig, angesichts des vom Bundesjustizministerium vorgelegten Gesetzentwurfs zur "IP-Adressspeicherung" und der damit effektiv verbundenen Einführung einer umfassend...

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Phoenix R&D @phoenixrd.bsky.social · 30/01/2026

We will be at #FOSDEM and will bring something exciting: Invitation codes for the beta phase of @air.ms, our new secure messenger based on MLS! ✨ Hit @julianmair.com up if you’d like to join the beta with your friends.

Invitation cards in front of a notebook with a MLS sticker.

AIR
• No phone number or email
• End-to-end encrypted
• No metadata retention
• Open-source
• Post-quantum secure
• Based on Messaging Layer Security (MLS) and open standards
• EU-based

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Phoenix R&D @phoenixrd.bsky.social · 26/12/2025

We will be at #39C3 and we brought something exciting: Invitation codes for the beta phase of Air, our new secure messenger based on MLS! ✨ Hit us up if you’d like to join the beta with your friends. You can also follow @air.ms, where we’ll post updates over time.

Invitation cards in front of the ALL CREATURES WELCOME banner

AIR
• No phone number or email
• End-to-end encrypted
• No metadata retention
• Open-source
• Post-quantum secure
• Based on Messaging
Layer Security (MLS) and open standards
• EU-based

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Phoenix R&D @phoenixrd.bsky.social · 29/10/2025

We made MLS more decentralized! We are excited to share DMLS that brings fork resilience to the MLS protocol, solving a key challenge in distributed systems while maintaining Forward Secrecy. This work was made possible by @equalitie.bsky.social, who funded it as part of the Breakout program.

blog.phnx.im

Making MLS more decentralized

It’s no secret that we at Phoenix R&D are big fans of the Messaging Layer Security (MLS) protocol, having helped it to come into existence. It’s a versatile group key agreement and messaging protocol ...

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Phoenix R&D @phoenixrd.bsky.social · 06/10/2025

🚨 Der Gesetzentwurf zur #Chatkontrolle sieht vor, dass digitale Kommunikation einschließlich verschlüsselter Nachrichten und Fotos gescannt werden soll. Wir haben uns an die deutsche Bundesregierung gewandt, sich am 14. Oktober gegen den Gesetzesvorschlag der Chatkontrolle auszusprechen.

linkedin.com

Unser Brandbrief zur geplanten Chatkontrolle – eine Gefährdung der digitalen Sicherheit Deutschlands | Phoenix R&D

🚨Der Gesetzentwurf zur #Chatkontrolle sieht vor, dass digitale Kommunikation einschließlich verschlüsselter Nachrichten und Fotos gescannt werden soll. Die Sicherheit von sicheren Messenger-Diensten ...

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Phoenix R&D @phoenixrd.bsky.social · 02/07/2025

We did a thing. We combined TLS and MLS into a hybrid protocol. Why? Because sometimes you need connections that last for weeks, quantum-resistant security, or simpler certificates. The experiment is open-source. Here's the story 👇

blog.phnx.im

Combining TLS and MLS: An experiment

We did a thing. We combined TLS and MLS into a hybrid protocol. Of course, when things get serious, full names are in order: We combined the Transport Layer Security protocol and the Messaging Layer S...

054

Phoenix R&D @phoenixrd.bsky.social · 15/05/2025

We are #hiring a Freelance Junior Product Manager to help us build the next generation of private & secure messaging. If you’re interested in joining our team, please apply today! For friends of secure messaging 🥷, please share our post with potential candidates.

join.com

Phoenix R&D (Remote): Freelance Junior Product Manager (all genders, part-time)

Phoenix R&D GmbH has a remote job opening for Freelance Junior Product Manager (all genders, part-time) (published: 15.05.2025). Apply now or check the other available jobs.

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Reposted by Phoenix R&D

Raphael Robert @raphaelrobert.bsky.social · 14/05/2025

Happy to announce that I’ll be speaking at @passthesaltcon.bsky.social on July 2nd! I’ll discuss end-to-end encryption with MLS, the growing MLS ecosystem, the MIMI IETF working group, and metadata protection. It’s my first time attending, and I look forward to connecting with the French community!

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Reposted by Phoenix R&D

Raphael Robert @raphaelrobert.bsky.social · 22/04/2025

The MLS Architecture document – the companion document to the MLS Protocol document – is now finally available as RFC 9750: www.rfc-editor.org/info/rfc9750

rfc-editor.org

Information on RFC 9750 » RFC Editor

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Reposted by Phoenix R&D

Raphael Robert @raphaelrobert.bsky.social · 27/02/2025

MLS is efficient, but what does that mean in practice? This paper sheds some light on the question by building a test framework for OpenMLS. arxiv.org/pdf/2502.18303

arxiv.org

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Phoenix R&D @phoenixrd.bsky.social · 21/01/2025

We are happy @opentechfund.bsky.social is supporting our mission to bridge the gap in the secure messenger space by developing a new technological foundation for secure and private messaging that combines functional, privacy, and security features in a way that addresses a variety of threat models.

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Phoenix R&D @phoenixrd.bsky.social · 07/01/2025

Happy New Year! Phoenix R&D enters 2025 with some good news! Over the last few months we have doubled our team size, which will help us shorten our development cycles. We are excited about the new research projects. These projects also allow us to further diversify our sources of income. (🧵1/2)

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Phoenix R&D @phoenixrd.bsky.social · 26/09/2024

This weekend, @raphaelrobert.bsky.social and @julianmair.com are joining the #GlobalGathering. We will be hosting a booth and circle on Saturday to discuss the current state of privacy preserving and decentralized messengers. We look forward to seeing you at there! Feel free to ping us!

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Phoenix R&D @phoenixrd.bsky.social · 04/09/2024

We #hiring a full-time and a freelance Senior Rust Engineer to help us build the next generation of private & secure messaging. If you’re interested in joining our team, please apply today! For friends of secure messaging 🥷, please share our post with potential candidates.

join.com

Jobs at Phoenix R&D GmbH | JOIN

Jobs at Phoenix R&D GmbH. Browse all open positions and become part of our growing team! We are currently looking for additions to our company. Apply today!

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Phoenix R&D @phoenixrd.bsky.social · 28/03/2024

We attended the Real World Crypto Symposium in Toronto 🇨🇦 where @raphaelrobert.bsky.social talked about how far MLS has come since RWC 2019. Highlights: - Post-quantum resistance and how easy it is to upgrade from current schemes - Deployment in existing products like Webex and Discord (🧵1/2)

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Phoenix R&D @phoenixrd.bsky.social · 09/02/2024

WhatsApp shared first details on how they will comply with the #DMA. We are critical of the Signal protocol, as there has never been a complete specification that allows secure implementation of the protocol. This was one of the main reasons to develop MLS. Our conversation with @netzpolitik.org👇

netzpolitik.org

Interoperabilität: WhatsApp soll bald mit anderen Messengern reden können – netzpolitik.org

Wegen neuer Regeln in der EU muss WhatsApp sich so öffnen, dass die Nutzer:innen auch mit Kontakten auf anderen Messengern kommunizieren können. Nun hat WhatsApp erste Details verraten, wie das gehen soll. Doch grundsätzliche Probleme bleiben.

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Phoenix R&D @phoenixrd.bsky.social · 03/01/2024

We ended 2023 with a talk at #37C3. @raphaelrobert.bsky.social and Konrad presented Messaging Layer Security (MLS). The room was packed and some people couldn't attend – luckily the talk is now online. 🍿 media.ccc.de/v/37c3-12064... #securemessaging #encryption #e2ee #messaginglayersecurity

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Reposted by Phoenix R&D

Raphael Robert @raphaelrobert.bsky.social · 29/12/2023

Today at #37c3, 3:45pm, Konrad and I will give a talk in hall Zuse about Messaging Layer Security (MLS). They call it RFC 9420, we say MLS: A new IETF standard for end-to-end encryption, bringing improvements in performance and security. 👉 fahrplan.events.ccc.de/congress/202...

fahrplan.events.ccc.de

Lecture: RFC 9420 or how to scale end-to-end encryption with Messaging Layer Security | Friday | Sch...

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Phoenix R&D @phoenixrd.bsky.social · 26/12/2023

We are very excited to be at #37c3 in Hamburg after a long pandemic break. On day 3 (29.12., 3:45pm), @raphaelrobert.bsky.social and Konrad will give a talk on “RFC 9420 – or how to scale end-to-end encryption with Messaging Layer Security (MLS)” 👉 fahrplan.events.ccc.de/congress/202...

Picture from the train with a computer on the table with an open presentation: "RFC 9420 - or how to scale end-to-end encryption with Messaging Layer Security (MLS)".

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Phoenix R&D @phoenixrd.bsky.social · 20/12/2023

After @netzpolitik.org’s recent investigation into surveillance through push notifications, many people have been concerned about how their own privacy is affected when using messengers anonymously. In this blog post we examined the problem and what to do about it. Check it out 👇

blog.phnx.im

On the privacy of push notifications

Push notifications are a mechanism through which applications can send and display notifications to users of smartphones. The infrastructure that drives these notifications in the background is a comp...

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Phoenix R&D @phoenixrd.bsky.social · 20/12/2023

Check out our blog post where we examine the push notification problem and address potential misconceptions! In the wake of recent reports on surveillance via push notifications, many people have been confused about it and how it affects their own privacy when using messengers anonymously.

blog.phnx.im

On the privacy of push notifications

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Raphael Robert @raphaelrobert.bsky.social · 13/12/2023

First impactful measure following last week's splash about push notification surveillance: www.reuters.com/technology/a...

reuters.com

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Raphael Robert @raphaelrobert.bsky.social · 07/12/2023

Let's make this crystal clear: If you think you are anonymous because you - used a throwaway number for Signal - picked a completely random username for Wire/Matrix - were given a random username with Threema/Session YOU ARE NOT! You can be identified by the push tokens.

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Raphael Robert @raphaelrobert.bsky.social · 06/12/2023

This has been bothering me for a while and I'm glad there's finally more discussion about this. Push notifications are a problem for privacy, we need more transparency and changes in the way they work. netzpolitik.org/2023/push-di...

netzpolitik.org

Push-Dienste: Behörden fragen Apple und Google nach Nutzern von Messenger-Apps – netzpolitik.org

Smartphone-Apps verschicken Benachrichtigungen über Apple und Google, auch vermeintlich sichere Messenger. Damit können Behörden Nutzer-Daten bei Smartphone-Firmen abfragen. Bis jetzt verweigern al...

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Phoenix R&D @phoenixrd.bsky.social · 06/12/2023

Numerous cryptography experts analyzed the Messaging Layer Security protocol. Théophile Wallez presented at the USENIX Security '23 conference the contributions of Jonathan Protzenko, Benjamin Beurdouche, Karthikeyan Bhargavan, and himself and why it is not a good idea to roll your own crypto.

youtu.be

USENIX Security '23 - TreeSync: Authenticated Group Management for Messaging Layer Security

USENIX Security '23 - TreeSync: Authenticated Group Management for Messaging Layer SecurityThéophile Wallez, Inria Paris; Jonathan Protzenko, Microsoft Resea...

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Phoenix R&D @phoenixrd.bsky.social · 03/11/2023

After #chatcontrol, lawmakers are now trying to mandate government-controlled certificates in browsers. Along with 400 experts and researchers from around the world, our Head of Research Konrad Kohbrok has signed an open letter to abandon the #eIDAS plans. eidas-open-letter.org

photorealistic brass padlock broken into many pieces over a background of the EU flag

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