1. X
  2. Keycard Shell
Log inSign up
Keycard Shell
Logos
1,351 posts
Keycard Shell profile banner
user avatar

Keycard Shell

Logos
@Keycard_
The most secure, modular hardware wallet for your crypto. One shell, many keycards. Join our community: discord.gg/uJAXk7jFhZ
Switzerland
keycard.tech/?utm_source=x
Joined January 2019
309
Following
3,977
Followers
RepliesRepliesArticlesArticlesMediaMedia
  • user avatar
    Keycard Shell
    Logos
    @Keycard_
    Aug 7
    this is incredible we've tested the alpha version there's no mobile wallet with a better hardware wallet integration than @ambire keycard, shell and @ambire feel like best friends ever now
    user avatar
    Bobby
    @borislavItskovv
    Aug 7
    Perhaps the biggest tiding of the week is the @Keycard_ NFC integration in @ambire mobile 👀 My colleague @sonytooo lifted mountains ⛰️ so this could make it Ambire Mobile is in early testing. We’re super excited and can’t wait to get it over the line
  • user avatar
    Keycard Shell
    Logos
    @Keycard_
    Jul 31
    in this crazy day, a memo that @Keycard_ shell: - supports bitcoin, including multisigs - has hardware TRNG generated seeds (with full certification, see links in our past tweets today) - works with QR enabled wallets: sparrow, specter, nunchuk, bitget, bluewallet, unisat,
  • user avatar
    Keycard Shell
    Logos
    @Keycard_
    Jul 31
    For those of you who used Shell to generate your seed: you're safe. You're safe because your seed was generated by the TRNG of the EAL6+ certified secure element itself (the card). And its randomness has been certified (see certificates below). Good randomness comes from two
    Image
    bsi.bund.de
    Random Number Generators
  • user avatar
    Keycard Shell
    Logos
    @Keycard_
    Jul 31
    Your seed is generated by a true hardware random number generator (TRNG) inside the Keycard chip, the same kind of certified secure element used in bank cards and passports. The generator is certified to AIS-31, the German BSI standard for physical random number generators, as
  • user avatar
    Keycard Shell
    Logos
    @Keycard_
    Jul 24
    Safe Foundation built a self-custodial neobank, tested it, and shelved it because of market conditions and regulation, not the tech. One part that clearly worked? @Keycard_ for recovery. No seed phrase, just a card in your hand. That's why recovery went from their #1 friction
    user avatar
    jan_lbrs
    @jan_lbrs
    Jul 24
    With @FloB_Safe I built (& shelved) a self-custodial neobank wallet on @safe. Our learnings: safefoundation.org/blog/built-tes… TLDR: so much of the UX is still broken 10y into Ethereum. Fixing it alone doesn't beat FinTechs - nailing borrowing is a thesis that might.

Log in or sign up for X

See what’s happening and join the conversation

Continue with phone
or
Log in with username or email
Terms·Privacy·Cookies·Accessibility·Ads Info·© 2026 X Corp.
Advertisement
Advertisement