Keycard Pal is on F-Droid 💪 It's a OSS, community driven mobile app. It allows to use your @keycard_ with any QR software wallet ethereum & bitcoin That's powerful for @keycard_ users

Tangem is not a hardware wallet (it doesn't bring more security than a mobile phone) and all cards are at risk see donjon.ledger.com/blog/bypas… - if you like the form factor check out @Keycard_ or @satochip

🔥 I ranked 21 Bitcoin signers. 5 years in the shadows: testing hardware wallets, watching Bitcoin Twitter, following every hack, every bug, every vendor drama. This is where I landed, & some of you won't like it. My criteria: 🔓 Open code you can verify 📵 Air-gap: QR or microSD over USB, Bluetooth or NFC 🧱 Security model: secure element, stateless or smartcard 📜 Track record, and how the vendor reacts when things break 🔁 Standard backups (BIP39, PSBT, descriptors): no lock-in 🟥 S TIER Open code, minimal trust in a vendor, and for most of them you can build or flash it yourself. The less you have to trust, the higher it goes. 🟧 A TIER Serious, Bitcoin-focused tools. You trust the vendor more than in S, and you get polish in return. Yes, Coldcard stays in A after July's entropy bug. The transparent fix and migration guide count too. 🟨 B TIER Good tools, each with a trade-off: a server in the security model, a newer approach still proving itself, a phone in the loop, or multi-coin roots. 🟩 C TIER Multi-coin first, Bitcoin second. ⬜ D TIER Closed code, or recovery models where a company holds part of the keys to your castle. Now the twist: no signer is the best in the absolute. The right one depends on YOUR threat model. A ranking expires. A method doesn't. That's the whole idea behind chapter 23 of Bitcoin Hodler: Choosing Your Signer. 📖 Where would you move one device? 👇

Mis primeras impresiones de @Keycard_ 👇 Antes un resumen de porque la elegí: • Es una mezcla de @Tangem y @KeystoneWallet • Firmás con NFC o con QR • Con QR ves en la pantalla del Shell lo que estás firmando • La wallet de la tarjeta la podés borrar y generar otra, cada una te da su seed • Todo open source Existen más cosas, que no dejan de ser importante, pero no quería hacer un post muy largo, vayan a visitar su web 😉 Wallet con las cuales pueden usarla: • Para redes EVM pueden usarla junto a @ambire, con QR en la extensión y NFC/QR en el celular, realmente el uso en muy fluido. Existen más opciones por ejemplo @Rabby_io, pero solo es con QR. • Para BTC @SparrowWallet / @bluewalletio son opciones, pero existen más, en todas es solo con QR Posibilidades: • Una wallet diaria que pueden usar con Ambire por NFC • Una wallet con fondos para hold para usar solo QR, viendo que se firma gracias al Shell • Firmante de una @safe Para mí es una muy buena opción, pero por supuesto nunca dejen de hacer ustedes su propia investigación, cualquier cosa preguntan 🫡

Your Nostr key, on a @Keycard_. keycard-nostr-bunker is a NIP-46 bunker: clients connect over relays, the card signs and decrypts. The key never leaves it. pipx install keycard-nostr-bunker github.com/mmlado/keycard-no… #nostr #NIP46 #Keycard #selfcustody #hardwarewallet #opensource

you should be more like @alisher

Running separate seeds doesn’t have to mean juggling wallet extensions with Keycard Shell and @ambire , you can keep accounts from different seeds in one extension and switch between them as needed each seed stays on its own Keycard here’s how: • insert your first card and enter its PIN • select Connect Software Wallet → Ethereum • scan the QR in Ambire, select an account and name it • repeat with your next card choose the account in Ambire, insert the corresponding card into Shell when you need to sign separate seeds, without a separate workflow for each👇

Keycard Shell Review 2026 – Modular Air-Gapped Hardware Wallet piped.video/watch?v=uQrKg-sW… #Keycard #Coldwallet #Cryptowallet @Keycard_

ambire + keycard are a great combo

Transparency beats trust. So we made Shell hardware easy to verify. Here are videos and pictures to help you check the integrity of your Shell: docs.keycard.tech/en/help/ch…

that's the beauty of open source development

Keycard Shell 1.4.0 firmware: reproducible ✅ We rebuilt it from source. The firmware matches apart from its signature, and this release's newly published bootloader matches byte for byte once its key field is copied in. Congrats @Keycard_ @WalletScrutiny walletscrutiny.com/hardware/…

Or just move to something that's already transparent and open source - @Keycard_

Keycard is a huge underdog! - Overall works great, very easy, simple, self-explanatory - Solid build quality - Interchangeable secure elements (cards) - Super open wrt software and hardware & schematics even.. - Cheap! Recommended! Product link in comment

Another key benefit of @Keycard_ it’s a clear case. So easy to double check the insides

Mobile app supports @Keycard_ NFC signing. Just tap your Keycard to your phone and complete transactions on the go.

Safe is making it easier and more secure to use with @safe Pro Start a project with your email and upgrade ownership as you grow with more people and adding fully owned software and device account signers like @ambire and @Keycard_ • See all accounts in 1 Workspace • Safenet transaction tx verification network as a security layer • As simple or customized as needed I'm most looking forward to a version of Safe Pro for individuals with multiple accounts that has features like gasless txs, Safenet, and access controls