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Privacy focused, post-quantum communication infrastructure

Earth
Joined January 2026
Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)Photo by Sealed (@sealedchannel)
Sealed App is live on @Algorand mainnet. Private communication starts here. Open Sealed. Send your first encrypted message. Invite one person. Keep it Sealed. Download the app from sealed.channel
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Veni, vidi, vici 🇮🇹 A little recap from SiGMA World in Rome. Great event and a city that’s hard to forget. Until next time! 🔒
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All roads lead to Rome 🇮🇹 From November 2nd to 5th - Sealed is coming to @SiGMAworld_ exhibiting at Startup Village! We’ve been building something exciting behind the scenes and can’t wait to share a sneak peek of it in Rome. Building in Web3, privacy or cybersecurity? Come meet us at SiGMA! 🔐
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OpenAI claims a solution to a Millennium Prize problem worth a million dollars. 90 year problem, 10k agents, 88 hours. And researchers who used these tools wondering now how much of their work sat on the company’s servers. Big tech will keep breaking records. Trust is whether your draft stays yours while it does. This is exactly how much privacy is needed in everyday life.
We’re sharing a solution to the Navier-Stokes Millennium Prize Problem, one of the deepest problems at the frontier of mathematics. The proof was produced by a group of agents, using an OpenAI next-generation model significantly more capable than GPT-6 Astra. The problem concerns whether the description of smooth three-dimensional fluid motion modeled by the Navier-Stokes equations can break down. It has remained unresolved for roughly 90 years.
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Meta’s new AI agent Muse will send emails, book travel and spend money for you. Same company that made E2E optional for Instagram. Who really is in control, if the assistant can also act? Keep it Sealed 🔐
Introducing Muse, your personal AI agent from Meta that gets things done across every part of life. Download the Muse app and get started: Muse.ai
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Other apps ask for your identity before you can say hello. Sealed asks which wallet you want to use. Create it on your device, or restore it from mnemonic phrase. The conversation never begins with a phone number. Keep it Sealed sealed.channel
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Private messages. Zero surveillance. End-to-end encryption. Quantum resistant. No phone number. No email. No server watching. Android is live. More soon. Keep it Sealed 🔐
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Algorand has already cleared one million post-quantum txs. That’s a million reasons a conversation on this chain stays closed. 🔒
Over 1,000,000 post-quantum transactions have now been signed on Algorand mainnet. No leading Layer 1 has gone further. We're in a league of our own.
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Building. Connecting. Sealing the future of private communication. Bangkok, see you at Binance Blockchain Week. 👀
Binance Blockchain Week is back. 💛 This time with an Asia Edition in Bangkok, Thailand. Two days bringing together the builders, leaders, and communities shaping what’s next. 🎟️ Early Bird tickets now available for US$19 →
binanceblockchainweek.com 📅 Nov 28–29, 2026 See y’all there. 🫡
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Not every conversation needs a name. Sometimes an alias is all you need. Share what matters. Leave nothing behind.🔒
Your wallet is public. Anyone who sees the address can see the history behind it - that’s the Wallet Identity Problem. Sealed built a separate conversation mode - Alias Chat - for stronger separation between a specific conversation and user’s main wallet identity. It is not a public profile, not a nickname system and not a standard wallet-to-wallet chat. It is a device-bound chat mode where both sides communicate through locally created aliases, shared hints, temporary wallets and separate Alias Chat credits. Instead of displaying the recipient’s wallet address or nickname, the app shows a local alias chosen by the user. Under the hood - Sealed uses cryptographic information exchanged between both devices which can connect through one-time invitation or QR code exchange.
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Keep it Sealed 🔐 find out more at sealed.channel
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Sealed retweeted
Just because you have nothing to hide, does not mean that you have nothing to protect.
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Sealed retweeted
Keep it Sealed with Alias Chat 🔐
Your wallet is public. Anyone who sees the address can see the history behind it - that’s the Wallet Identity Problem. Sealed built a separate conversation mode - Alias Chat - for stronger separation between a specific conversation and user’s main wallet identity. It is not a public profile, not a nickname system and not a standard wallet-to-wallet chat. It is a device-bound chat mode where both sides communicate through locally created aliases, shared hints, temporary wallets and separate Alias Chat credits. Instead of displaying the recipient’s wallet address or nickname, the app shows a local alias chosen by the user. Under the hood - Sealed uses cryptographic information exchanged between both devices which can connect through one-time invitation or QR code exchange.
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Your wallet is public. Anyone who sees the address can see the history behind it - that’s the Wallet Identity Problem. Sealed built a separate conversation mode - Alias Chat - for stronger separation between a specific conversation and user’s main wallet identity. It is not a public profile, not a nickname system and not a standard wallet-to-wallet chat. It is a device-bound chat mode where both sides communicate through locally created aliases, shared hints, temporary wallets and separate Alias Chat credits. Instead of displaying the recipient’s wallet address or nickname, the app shows a local alias chosen by the user. Under the hood - Sealed uses cryptographic information exchanged between both devices which can connect through one-time invitation or QR code exchange.
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Privacy shouldn’t stop at your phone. Sealed is built for more than private conversations. We are working on something bigger - designed to secure the way people communicate every day. The first layer is already available for Android. More soon 👀
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Small detail most people miss: WhatsApp’s cloud backup isn’t encrypted by default - unless you dug into the settings and turned it on yourself. That means a plain-text copy of your entire conversation history can just sit there unprotected. Take care of your communication.
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Have you already used Sealed v2.0.3? Let us know what are your thoughts and what other features would you like to see in the app! And don’t forget to keep it Sealed 🔐
1. Download and open Sealed app. 2. Connect or set up your blockchain wallet. 3. Get your free access code from our discord channel. 4. Find or invite a contact. 5. Send your encrypted message. 6. Ask the other person to reply and share feedback with us. That’s it.
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What’s new? • Biometric unlock - unlock with Face ID / fingerprint instead of typing your passcode every time. Offered during setup, toggle anytime in Settings ▸ Biometric unlock. Passcode still works and is still required after a restart. • Multiline message composer - chat input now grows up to 5 lines and Return adds a newline (instead of sending), so you can write longer messages comfortably.
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What’s fixed? • User's Profile data more stable. • Fixed account creation failing when you pressed Return during onboarding. • Fixed redeem on IOS
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We fired up the new version of Sealed and honestly we fell for it ourselves! Clean, fast, easy in use. You open it, you type. All the encryption happens in the background for every message. Join our discord and claim a free access: discord.com/invite/GUKD8E6xC… Keep it private!🔐
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