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Notices by Tuta (tutanota@mastodon.social)

  1. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Tuesday, 06-Oct-2026 19:52:10 JST Tuta Tuta

    Okay, the first code was too easy 😀 Can you crack this code? 😎

    In conversation about a day ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/393/158/510/921/742/original/103e03d9bc87ea0b.png
  2. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Tuesday, 06-Oct-2026 17:09:54 JST Tuta Tuta

    Can you crack the code? 😎

    October is #NationalCyberSecurityAwarenessMonth & we've hidden a secret message for you. 🔐

    Decrypt it & stand a chance to win a Tuta hoodie - just in time for winter. 🥶❄️

    #CyberSecruity #CyberSecMonth #TutaMail #PrivacyMatters

    In conversation about 2 days ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/392/797/009/588/874/original/ac8c9737dae36222.png
  3. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Tuesday, 06-Oct-2026 06:14:35 JST Tuta Tuta
    • GrapheneOS

    🚨 GOOGLE IS KILLING ANDROID FREEDOM. 🚨

    This #DiDay we call on you to take action & sign the petition:
    https://www.change.org/p/keep-android-open-stop-google-from-limiting-apk-file-usage

    Because Google must not decide what you can & can't download on YOUR Android device.

    This undermines one of Android’s defining features: the freedom to install software from wherever you choose. 😤

    #Android is supposed to be open, & your phone should be yours → NOT GOOGLES.

    It’s time to support open alternatives like @GrapheneOS ✊

    More: https://tuta.com/blog/android-side-load-apps-google

    In conversation about 2 days ago from mastodon.social permalink

    Attachments



    1. https://files.mastodon.social/media_attachments/files/117/381/558/536/838/526/original/78a25b3f66fa8133.png


  4. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Monday, 05-Oct-2026 02:00:12 JST Tuta Tuta

    WATCH: Tuta Meets Nextcloud! 🤝✨

    Say hello to a seamless privacy integration - Free to use & made in Germany. 🇩🇪❤️

    Take a look at how you can use Tuta & Nextcloud together:

    Invidious: https://inv.nadeko.net/watch?v=wQvz49XXMHQ

    YouTube: https://youtu.be/wQvz49XXMHQ

    In conversation about 3 days ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/370/534/363/714/288/original/c24fb4bf8f033def.png

    2. Tuta Meets Nextcloud! Say hello to a seamless privacy integration ✨🎉
      from Tuta
      Tuta & Nextcloud can now be used together!Tuta now comes with an app for Nextcloud and has built a Tuta plugin for seamless integration into Nextcloud. So yo...
  5. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Saturday, 03-Oct-2026 21:06:56 JST Tuta Tuta

    🇩🇪 Today we celebrate #GermanUnityDay – a victory over oppression & mass surveillance.

    But history warns us: #ChatControl could bring surveillance back at a scale East Germany could only have dreamed of.

    Let’s defend freedom & say NO to #ChatControl! ✊

    👉 https://tuta.com/blog/unity-day-reminder-no-to-surveillance

    In conversation about 4 days ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/376/362/441/683/899/original/d24990b19ac41c75.png

  6. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Thursday, 01-Oct-2026 22:31:11 JST Tuta Tuta

    RE: https://mastodon.social/@Tutanota/117347865588126612

    We did it: The EU Parliament continues to OPPOSE #ChatControl 2.0! 🥳

    Thanks everyone for writing to representatives. 🫶

    The next trilogue is scheduled for November, we must make sure that end-to-end encryption and private communication remains to be protected!

    #privacy

    In conversation about 6 days ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: files.mastodon.social
      Tuta (@Tutanota@mastodon.social)
      from Tuta
      Attached: 1 image 🚨🇪🇺 The #ChatControl trilogue starts on Tuesday & the EU Council is trying to pressure Parliament into giving up its opposition. We must stop them once again! 💪🏼 And the proposed compromise isn't targeted policing, it is mass surveillance! Because no matter the framing, the truth remains the same: There's no backdoor for the good guys only! We at Tuta will continue to fight for your right to #privacy. Make your voice heard as well, today is the day! ➡️ https://fightchatcontrol.eu/
  7. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Monday, 28-Sep-2026 22:17:41 JST Tuta Tuta

    🚨🇪🇺 The #ChatControl trilogue starts on Tuesday & the EU Council is trying to pressure Parliament into giving up its opposition. We must stop them once again! 💪🏼

    And the proposed compromise isn't targeted policing, it is mass surveillance!

    Because no matter the framing, the truth remains the same: There's no backdoor for the good guys only!

    We at Tuta will continue to fight for your right to #privacy. Make your voice heard as well, today is the day!

    ➡️ https://fightchatcontrol.eu/

    In conversation about 9 days ago from mastodon.social permalink

    Attachments

    1. No result found on File_thumbnail lookup.
      Fight Chat Control - Protect Digital Privacy in the EU
      Learn about the EU Chat Control proposal and contact your representatives to protect digital privacy and encryption.

    2. https://files.mastodon.social/media_attachments/files/117/347/862/486/698/732/original/53d67b2c8416c207.png
  8. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Sunday, 27-Sep-2026 01:31:47 JST Tuta Tuta

    The has never been a better time to #DEMICROSOFT.

    With constant AI integrations, unwanted features & price hikes, it truly has become 'Microslop'

    Luckily, excellent alternatives exist.

    Make the switch.

    https://tuta.com/blog/microsoft-365-price-increase

    In conversation about 11 days ago from mastodon.social permalink

    Attachments



    1. https://files.mastodon.social/media_attachments/files/117/337/992/584/504/790/original/2a9ce725f7af0b1c.png
  9. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Tuesday, 22-Sep-2026 22:26:30 JST Tuta Tuta

    Positive News: Schleswig-Holstein, continues to lead the way to Germany’s digital sovereignty! 🎉👏

    Now, The Kiel State Chancellery has switched from Microsoft Windows to Linux. ✅🐧

    Find out which other European countries are taking steps to distance themselves from US tech and become digitally sovereign 👉 https://tuta.com/blog/countries-ditching-microsoft-choosing-linux-digital-sovereignty

    In conversation about 15 days ago from mastodon.social permalink

    Attachments



    1. https://files.mastodon.social/media_attachments/files/117/314/066/503/100/456/original/450d9f9ea768ae46.png
  10. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Thursday, 17-Sep-2026 17:04:29 JST Tuta Tuta

    🇪🇺🚨 Ursula von der Leyen wants to ban social media for under 13s across the European Union

    What the EU claims as "child protection" means mass surveillance because of ID checks and face scans 🚩

    We must fight against #AgeVerification and for our right of #privacy✊

    In conversation about 21 days ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/285/308/339/522/486/original/92a314d31f92a68a.png
  11. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Saturday, 12-Sep-2026 05:49:12 JST Tuta Tuta

    "I have nothing to hide."

    False.

    You have medical history

    You have financial behavior

    You have location patterns

    You have political views

    You have relationship data

    Privacy was never about hiding crimes. It was always about owning your life.

    In conversation about a month ago from mastodon.social permalink
  12. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Tuesday, 08-Sep-2026 01:31:53 JST Tuta Tuta

    Google's #Gemini AI invasion continues → It wants your biometric data, your selfie, and even your voice. 😡

    Now it's adding conversational AI features to Gmail, Docs and Keep.

    There has never been a better time to #DeGoogle and take back your privacy. ➡️ https://tuta.com/blog/degoogle-list

    In conversation about a month ago from mastodon.social permalink

    Attachments



    1. https://files.mastodon.social/media_attachments/files/117/228/887/208/475/128/original/5d25f0d509760e8d.png

    2. https://files.mastodon.social/media_attachments/files/117/228/887/201/976/540/original/38a9dce596547043.png

    3. https://files.mastodon.social/media_attachments/files/117/228/887/215/249/418/original/0716843e251b39d1.png
  13. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Monday, 07-Sep-2026 22:22:06 JST Tuta Tuta

    Switzerland's great migration away from US Tech begins. 🎉🇨🇭

    The Swiss Federal Government has launched a pilot program to replace MS365 on 3,000 workstations with openDesk, a German open-source alternative.

    The Swiss are taking a step in the right direction to achieve #DigitalSovereignty and control of their digital infrastructure.

    Find out which other European countries are taking steps to distance themselves from US tech 👉🏼

    https://tuta.com/blog/countries-ditching-microsoft-choosing-linux-digital-sovereignty

    In conversation about a month ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/229/951/687/889/606/original/b9af6c89fbbdc2f1.png

  14. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Sunday, 06-Sep-2026 22:13:11 JST Tuta Tuta

    Google removed uBlock Origin from the Chrome Web Store 😡 Long live uBlock Origin! 🥳

    This #DiDay, take a look at alternative browsers to Chrome & #DeGoogle?!

    → Browser alternatives: https://tuta.com/blog/best-private-browsers

    → Degoogle: https://tuta.com/blog/degoogle-list

    In conversation about a month ago from mastodon.social permalink

    Attachments




    1. https://files.mastodon.social/media_attachments/files/117/223/746/708/865/481/original/1f730ad110f03e76.png

    2. https://files.mastodon.social/media_attachments/files/117/223/746/747/847/224/original/4010742079918365.png
  15. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Friday, 04-Sep-2026 02:31:35 JST Tuta Tuta

    Meta avoided its biggest legal challenge and it shows us one thing: Meta would rather pay an $18 billion dollar settlement instead of having to put its users' health and privacy first.

    This is just further proof that Big Tech prefers to maximize its profits instead of respecting its users! 😡

    Find out more here 👉 https://tuta.com/blog/meta-trial-settlement

    In conversation about a month ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/206/371/755/659/149/original/118aa532d42451af.png

  16. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Thursday, 03-Sep-2026 20:37:05 JST Tuta Tuta

    Autistici/Inventati got sanctioned by the U.S. for providing secure services to left-wing activists and allegedly terrorists.

    This must be another wake-up call for digital sovereignty.

    After all, #privacy is a human right, and we must not take that away from everyone.

    Our comment: https://tuta.com/blog/autistici-inventati-us-sanctions

    In conversation about a month ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/200/715/574/067/265/original/cbd8c5960db918d5.png

  17. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Tuesday, 01-Sep-2026 00:26:19 JST Tuta Tuta

    If you have a Gmail account, you need to read this.

    Google's AI now scans your emails and attachments, bank statements, tax files, medical letters, all of it. It turned on by default, and there's a class-action lawsuit over how.

    Here are 5 moves to shut it off, the switch is hidden in two places:

    In conversation about a month ago from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/117/190/613/751/144/206/original/da1c933d40a2f58e.jpeg
  18. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Sunday, 30-Aug-2026 23:51:39 JST Tuta Tuta

    Stop saying stupid stuff like:
    "If you have nothing to hide, you have nothing to fear."

    Start saying:
    "A free country doesn't track innocent citizens."

    In conversation about a month ago from mastodon.social permalink
  19. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Sunday, 30-Aug-2026 05:08:40 JST Tuta Tuta

    Google says YOU must wait 24 hours if you download an app onto your OWN DEVICE if it's from an "Unverified developer". What ever happened to user choice and Android freedom?! 😡

    Google has started rolling out its new ""Advanced Flow", which requires you to wait a 24-hour waiting period if you want to install apps from unverified developers.

    Find out more: https://tuta.com/blog/android-side-load-apps-google

    Sign the petition:
    https://www.change.org/p/keep-android-open-stop-google-from-limiting-apk-file-usage

    In conversation about a month ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: assets.change.org
      Sign the Petition
      from @change
      Keep Android Open (Stop Google from limiting APK file usage)

    2. https://files.mastodon.social/media_attachments/files/117/180/554/948/644/967/original/39a16b2dcad8870b.png

  20. Embed this notice
    Tuta (tutanota@mastodon.social)'s status on Friday, 28-Aug-2026 02:42:36 JST Tuta Tuta

    The University of Wuppertal has scientifically proven the security of TutaCrypt - our hybrid PQC protocol.

    We'd like to extend a big thank you to our partners at the University of Wuppertal for their support and collaboration. 🔐❤️

    Read the paper 👉 https://cic.iacr.org/p/3/2/15

    More on Tuta's PQC implementation: 👉 https://tuta.com/blog/post-quantum-cryptography

    In conversation about a month ago from mastodon.social permalink

    Attachments



    1. https://files.mastodon.social/media_attachments/files/117/160/459/426/674/499/original/d3f6d04a1cf37010.png
    2. No result found on File_thumbnail lookup.
      Migrating to Hybrid Cryptography in Practice: The TutaCrypt Protocol and Its Security
      In this work, we study the hybrid key establishment protocol TutaCrypt as a concrete case of post-quantum cryptographic migration in practice. The protocol was developed by the end-to-end encrypted email provider Tuta and has been deployed to more than ten million users worldwide. We present the protocol in a form that enables rigorous cryptographic analysis and define two Bellare–Rogaway-style security models that precisely characterize the provided security guarantees. The two models capture that the security properties achieved in the pre-quantum setting are slightly stronger than in the post-quantum setting. We then give reduction-based security proofs that clarify under which assumptions the construction achieves security, and how its guarantees degrade if either the classical or the post-quantum component is compromised.Our results illustrate how formally grounded cryptographic models can capture real-world migration strategies and hybrid deployments. Such analyses help to understand the security properties of deployed cryptographic systems and help move cryptographic migration from best practice toward principled, verifiable design.
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    Tuta

    Tuta

    Tuta is a secure email, calendar and drive provider with quantum-safe encryption. Open source & forever free! 🔒️ Visit us 👉️ http://tuta.com Made with ❤️ in Europe#TurnONprivacy

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