Keep your conversations secure, everywhere.

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Thanks Romain for posting! Feels great being here today 😸. You can check for more infos. We started building Seald in Berkeley, and are now working on the product from Paris. We are thankful for all the feedbacks our beta testers already gave us. We've heard you and we've built a Slack desktop compatibility. Thanks for building the Seald community with us 👌. Some of our users use Seald to protect everything (files/messages), others preferring to use it less frequently (only sensitive data). One question for you: Do you think you need encryption? If you think you have nothing to hide, you may be wrong... Go ahead and feel free to send us comments right now, we’d love to chat with you and hear what you have to say! For today, because it's a special event, if you sign up or send a Seald message to Tim (, you'll receive a cool gift soon 🎉. A meowtain of thanks and enjoy 😻. 🥖🇫🇷
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@tontonhube @seald It's looks really great! Your UI is amazing.
@nikolay @seald Great! Don't hesitate to contact me if you have any question or feedback :)
This application will permanently edit your copy of Slack to inject unknown code into it. DO NOT INSTALL. I will be working with Slack staff today to see what we can do about this application.
Upvote (19)Share <-- there's the code snippet where they patch it
@paulcbetts We are 100% transparent with our users. The patch is only on user demand, and 100% reversible (as you can see in the snippet, we save a copy of the original). If you want to discuss with us about our code, implementation, contact us directly at .
@mehdikouhen @seald Saying you're "Installing the Seald extension" is not at all the same as "Binary patching someone else's application and re-signing it with your key".
@paulcbetts @seald We are most definitely NOT re-signing anything. You may be right about the wording, we'll change that to be clearer about what it is doing.
I really love that security trend with human design in mind! Especially now (you know what I mean), we need to bring more and more people to secure their private life and conversations. The integration feature with messenger and other platforms is also great! Already signed up and currently trying the product :) I saw only Chrome integration, I'm using Safari, do you have any plans for other browsers?
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@geek_1001 Hi Ahmed! Our goal is really to bring end-2-end encryption into your everyday tools without changing your habits with a very simple UX, it's indeed very important especially now ;) Don't hesitate to contact us if you have any question or feedback :). We do plan on supporting other browsers! We'll start with Firefox, and then we'll work on Safari :).
@geek_1001 +1 for Safari extension, it's my daily browser. :)
Awesome product & great team. You guys rock. Congrats
Upvote (10)Share
@lucasbouyoux Thank you for your support :)
Seriously awesome! I've been using the beta for some time. It's as simple as ABC and I really feel secure
@laurent_jolie "Simple as ABC".. I see what you did there 😜