@Blockstream Jade + App ⛏️

Joined April 2021
Introducing... Jade Plus. The next generation bitcoin-only hardware wallet from @Blockstream With a redesigned form factor, hardware improvements and a brand new feature set... Jade Plus offers a premium and intuitive experience for beginners & veterans alike Let's dive in 👇
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Easiest multisig setup available? Go from app download to multisig in 30 seconds or less with the @Blockstream app. Protected with seed phrase and 2FA code, no extra education required
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Good to see the (re-entry) of collab custody options for easy multi sig. Looks like you can either generate a 3rd key in the Blockstream app, or ideally, generate it independently and import the xpub as 3rd key in a 2 of 3. But that 3rd key is really more like a recovery key and not something you'd use day to day.
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One of the most accessible multisigs available Just add a 2FA method like email or Authenticator app to protect yourself from single points of failure, without the usual multisig setup complexity
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Replying to @BlockstreamApp
@BlockstreamApp (formerly green wallet) has multisig 2fa feature. if you were using a HWW which turned out to have a hardware bug, using @blockstream wallet (and turn on 2fa eg google auth), you would have a last line of defense: the seed alone does not allow theft of funds.
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Replying to @Blockstream
@Blockstream JADE PLUS REVIEW! I paid for this myself, but I am absolutely blown away by this experience. It was honestly better than opening a brand new Apple IPhone. This is a new standard that other tech companies should try to recreate. Im kind of in shock honestly.
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Our CPO Jeff Boortz joined @JD_Durkin on @FINTECHTVglobal to talk through last month's hardware wallet incident. If a Coldcard created your seed, assume you are at risk. Move to a fresh phrase on hardware you trust. Do not restore the old one. Jade was not affected. There is no silent RNG fallback. Every recovery phrase is mixed from multiple independent entropy sources.
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Rich retweeted
Security isn't something you solve once. It's an ongoing commitment across the Bitcoin industry, especially as sophisticated attack tools become more accessible. Continuous testing, independent research, open source development, and relentless engineering are all critical to protecting Bitcoin holders and their assets. At the end of the day, we're all working toward the same goal: giving people the tools and confidence to securely self-custody their bitcoin and remain financially sovereign. While we compete in the market, we share the same broader mission. At @Blockstream , we believe that the more we work together, share what we learn, improve best practices, and educate users, the stronger and more resilient the entire Bitcoin ecosystem becomes.
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Clanker and I did it. Forked jade firmware, forked sparrow, successful on testnet. Used jade in temporary signer mode, no Blockstream pin or Bluetooth or login. 1 extra round of QRs only adds 10 seconds to signing. (Would suck with an SD card) Created issues on Git: github.com/Blockstream/Jade/… github.com/sparrowwallet/spa… Hopefully @BlockstreamJade and @SparrowWallet will review! Perhaps @4moonsettler or @PortlandHODL or @SuperTestnet can take a look? :)
Ooga Booga wants an air-gapped, exfil-protected signing device that doesn’t require their software for anything. Is that really too much to ask for?
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This week was a humbling reminder to reexamine my threat models. Multi-vendor multisig can diversify risk. New @SOVsessions tutorial Desktop: @SparrowWallet + @BlockstreamJade @Trezor @BitBoxSwiss Mobile: @nunchuk_io + @SeedSigner @BlockstreamJade 👇 youtu.be/Ja3ETXLmklI
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Announcing Blockstream Swaps. Trustless atomic swaps for Bitcoin, Liquid, and Lightning. Hold BTC or LBTC and pay Lightning invoices without managing channels or inbound liquidity. Reach Lightning from cold storage while keeping full control of your funds. Built as a complementary service to strengthen ecosystem resilience and redundancy. Currently in beta. Full announcement: blog.blockstream.com/announc… Beta access: blockstream.typeform.com/to/…
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The @BlockstreamJade is one of the best hardware wallets on the market, bar none. I wonder how many people dismissed it due to the FUD that it lacked a secure element? Secure elements aren't a panacea but are often sold as such. A physical SE in the device means everything needed to extract the seed is sitting right there, and potentially in the hands of someone that steals it. It's a stationary target. An attacker can wreck a dozen units learning the technique before touching yours. Ledger's Donjon has done exactly this to Coldcard silicon twice, the Mk2 ATECC508A and later the SE2 on Mk4, and voltage-glitched the Trezor Safe 3's MCU. Jade moves the target instead. Your seed is encrypted with an AES-256 key that the device and a blind oracle build between them, and the oracle never holds more than a piece of it. The ESP32 only has ciphertext. You can't extract something that was never in there. The attack turns interactive, against a party who rate-limits you and wipes its half after three bad PINs. Coldcard split your secret across three chips from different SEs. That genuinely helps against one vendor's silicon getting broken. But the pitch lands as arithmetic, and security doesn't really work that way. As we've seen, bad entropy at setup meant none of the silicon even mattered. You could have 10 SEs in the CC and that wouldn't have saved you. But people ate that security theater up. My mind keeps circling back to what we could have done differently. I keep landing on the same conclusion: we should have pushed back on the SE FUD much harder, and promoted Jade far more aggressively. We'd never have attacked CC, but we should never have taken the unwarranted flak for Jade's security model. The FUD steered people away from Jade. If we'd fought it, maybe more of them would have avoided the CC tragedy. When we first launched the Jade, it sold for just $39.99. For that price you got such an incredible amount of value (at launch and later with subsequent updates). ➡️ Virtual secure element via blind oracle (@Blockstream's or self-hosted) ➡️ Can function as a stateless signing device (like SeedSigner) ➡️ Anti-Exfil protocol to protect against your seed being exfiltrated (Jade is one of only two HWWs that do this) ➡️ Genuine Check verification to prove the device is authentic and untampered with ➡️ Secure Boot ensuring only properly signed firmware runs ➡️ BIP39 passphrase and duress PIN ➡️ Air-gapped operations ➡️ Store Liquid assets like @tether USDT ➡️ Multisig support AND the ability to back up the multisig config (descriptors) for a setup involving ANY devices (or mixed hardware/software), as long as at least one Jade is part of the multisig - this makes multisig far less brittle since losing the config is catastrophic The best part of all of this? You don't even need to BUY a Jade. You can build your own with almost any ESP32 board. Pair it with your own self-hosted blind oracle and you have a completely sovereign stack with no HWW vendor supply chain risk. If you're looking for a new hardware wallet, take a serious look at @BlockstreamJade. It's built by a world-class team of engineers and cryptographers assembled by @adam3us. But don't take my word for it. The firmware is fully open source, so read it yourself. Don't Trust. Verify. blockstream.com/jade
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Replying to @mozartsosmart
If @Blockstream, @adam3us and their blind oracle disappeared from the face of the planet tomorrow, you would lose the convenience of using your pin. That’s all, provided you backed everything up. You can always use your Jade as a temporary signer and manually enter your seed safely offline on your device each time you need to use it. It would be inconvenient, because the seed wouldn’t persist on your wallet, but by no means are you screwed. I have never understood this criticism. Not to mention they make it so you can set up your own blind oracle too. Somebody correct me if I’m wrong… @Excellion or anyone else..
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one of my favorite SECRET bitcoin wallet features? being able to store your Google Authenticator codes OFFLINE, without your phone. super great if you are travelling without your primary phone or just need a backup for safety!
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Unless @Apple's decision to terminate @craigraw's Apple Developer account is reversed by June 30, all new installs of Sparrow will fail, and development on macOS will end. If you value Sparrow, a repost would help. @AppleSupport
My attempt to protect users from scam apps on the @AppStore has gotten my Apple Developer account flagged for termination - ironically, for "dishonest activity". Unless it's reversed by June 30, all new installs of Sparrow Wallet will fail, and development on macOS will end. The context: since 2023, more than a dozen fake "Sparrow" apps have appeared on the App Store, as recently as April this year. Users have contacted me after losing their savings, in some cases their life savings, to these impersonators. I'm the developer of the real Sparrow Wallet, a desktop app, and I hold the registered US trademarks for the name and logo. I have publicly warned @Apple and the community about these fake apps from early 2024, but they keep appearing. The app @Apple flagged was a placeholder that was never published. Its only purpose was to warn users that Sparrow is desktop-only and that other "Sparrow" apps aren't mine. This approach may have been misguided, but there was nothing dishonest about it. I'm confident this is an automated misclassification that Apple would reverse on review - but I may be terminated before a human ever looks at my appeal. The cost would fall on @Apple's own users: blocked installs and no updates for a tool people rely on, which opens the door for more fakes. If you value Sparrow, a repost would help. @AppleSupport
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My attempt to protect users from scam apps on the @AppStore has gotten my Apple Developer account flagged for termination - ironically, for "dishonest activity". Unless it's reversed by June 30, all new installs of Sparrow Wallet will fail, and development on macOS will end. The context: since 2023, more than a dozen fake "Sparrow" apps have appeared on the App Store, as recently as April this year. Users have contacted me after losing their savings, in some cases their life savings, to these impersonators. I'm the developer of the real Sparrow Wallet, a desktop app, and I hold the registered US trademarks for the name and logo. I have publicly warned @Apple and the community about these fake apps from early 2024, but they keep appearing. The app @Apple flagged was a placeholder that was never published. Its only purpose was to warn users that Sparrow is desktop-only and that other "Sparrow" apps aren't mine. This approach may have been misguided, but there was nothing dishonest about it. I'm confident this is an automated misclassification that Apple would reverse on review - but I may be terminated before a human ever looks at my appeal. The cost would fall on @Apple's own users: blocked installs and no updates for a tool people rely on, which opens the door for more fakes. If you value Sparrow, a repost would help. @AppleSupport
Didn’t work. App (with the screens below) was rejected for having “placeholder content” and only “demonstrating a concept”.
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Your 2FA record, exported from Jade as a scannable QR. Save it to a secondary app, an encrypted drive, or a second Jade. The backup is in your hands.
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Blockstream Intern here. Sentiment is down bad. So, different kind of promotion. Buy any Jade, get 10% back in bitcoin. Now through June 7th. After purchase, on the Thank You page, press "Claim Rewards" Toodles store.blockstream.com/produc…
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Hardware security for your bitcoin. Now the same for your 2FA accounts. Import your existing accounts. Export back out as a QR or readable secret key. Your records, on hardware, behind a PIN.
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Jade Plus: air-gapped QR signing, camera, SD card. Built for bitcoiners who verify everything. Jade Core: USB-C + Bluetooth, color display, 5-minute setup. Built for the person who hasn't started yet. Same firmware. Same Blind Oracle security. Same open-source codebase.
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Your 2FA deserves the same protection as your Bitcoin. In its latest firmware update, @Blockstream Jade Plus can now serve as a PIN-protected hardware backup for your 2FA accounts. Back up your Google Authenticator accounts onto Jade. Export your OTP records whenever you need to.
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