Keycard Shell
@Keycard_
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Slide your Keys into a Shell Community: https://t.co/pMHQxicuaB Family: @ethStatus @InstituteFT Pre-order only €99 👇
Switzerland
Joined January 2019
How to confirm your multisig is (not) hacked by north korea and save yourself $1.5 billion - using an affordable, open source hardware wallet: Step A) On Shell, check SafeTxHash (EIP-712 digest). And don't click that send button just yet Step B) On separate, offline laptops
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when I'm finally able to secure my $1.5 billion with an affordable open source wallet
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Parallel Society is live. A two day convergence in Lisbon, built by a coalition. Day 1: [un]conference Co-created with: @torproject, @FundingCommons, @Kleros_io, @psy_dao, @MoneroKon, @nym, @winprivacy, @CCIdotCity, @ethnimbus, @ethstatus, @StatusL2, @urbeEth, @ZuGramaIndia,
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Breaking Down Coinbase's Latest Moves: Stablecoin Moves & JavaCards cc: @solflare and @Keycard_ @covewallet
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@josephdelong Oh cool! btw you can use @keycard_ (the unfused, programmable version, link below) to build such a colossus credit card https://t.co/FdqzDKi51P
get.keycard.tech
Secure crypto wallet for Ethereum & Bitcoin. Open-source, durable, and integrated with Keycard Shell and Status apps for secure asset management and dApp interactions
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Ledger and Trezor have had a decade to go 100% open source. They won't. Keycard + Shell did it at €25 and €99. Firmware. Hardware. Secure element. Everything. The "industry leaders" are reading this tweet right now wondering how to explain why they can't match a €25 card.
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generated the signature on a €25 hardware wallet signed to MetaMask registered web3sux.eth on mainnet no USB dongles no battery anxiety no Ledger Recover surprise extracting my seed phrase just docked my keycard in my shell and signed private keys never left the secure element
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Keycard Shell just scored 93% in an in-depth review “The security concept is extremely robust.” “... well thought out and consistently designed for durability.” “Anyone who feels comfortable in the open source sector will love the transparency and depth of information.”
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Presenting our Year in Best Open Source Hardware Wallets 2025.
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Just get a @Keycard_
Ledger is completely out of touch with the actual value prop of their product Been a few years coming and most people already moved on, but if you haven’t yet now might be a good time, lots of good options for HW wallets out there in 2025
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This is critical if you rely only on a TEE to hold your secrets - you should include a (programmable) Secure Element (STSAFE, Optiga) as well. Mediatek is one of the preferred options for building your own smartphone with a decent UX but has a rather bad security track record.
What if a hacker could gain total control of your smartphone, not via malware, but the hardware itself? The @DonjonLedger discovered a potentially unpatchable flaw impacting MediaTek Dimensity 7300 - a popular Android phone SoC - enabling arbitrary code execution in minutes.
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You'll update your Shell. You'll update it with new features. You'll update it every week. And you'll be happy.
Keycard Shell firmware v1.0.3 released by @Keycard_ Release notes: https://t.co/hB5nMe1JiS Discover and compare the Best Bitcoin Hardware Wallets.
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