A note only you can read

The most valuable thing in your wallet might be a note only you can read

Not money. Not a card number. A few lines of text you can’t afford to lose, carried encrypted on a MI8OS Card.

Carry that note encrypted

€49,00 for 3 cards. One-time purchase, no account.

A woman in a café holding up her MI8OS Card

Small text, big consequences

A recovery phrase or a long password is only a few words. Losing it, or having it read, can cost far more than the cash next to it.

MI8OS encrypts the note on your phone and writes only the encrypted result to the card. Without your Vault Password, it stays closed.

Valuable, and closed to others

  • A found card stays closedOpening the vault takes the card, the app, an NFC phone and your Vault Password.

  • Fits in your walletBank card size, with no name or number on it.

  • Three copies, one vaultCarry one, keep one at home and store one somewhere else.

How it works

Write it once. Open it with a tap.

  1. 01

    Add your secrets

    Passwords, recovery phrases and private notes.

  2. 02

    Choose a Vault Password

    Only you know it. MI8OS never keeps a copy.

  3. 03

    Encrypted on your phone

    Before anything reaches the card.

  4. 04

    Tap your card

    Hold it to your phone and the vault is saved.

Who can open it

A found card is not enough

  • Your MI8OS Card
  • The MI8OS app on an NFC phone
  • Your Vault Password

Opening the vault takes all three. Nobody can recover a forgotten Vault Password, not even MI8OS.

MI8OS Card gen 2

3-card set

€49,00

In stock

Ships from Switzerland Europe: 3–7 business days Worldwide: 7–14 business days

30-day returns money back guarantee Secure checkout

  • End-to-end encrypted
  • No subscription
  • One-time purchase
Your legal guarantee rights

FAQ

Before you buy

Someone finds a card I lost.

They have an unlabelled card containing encrypted data. There is nothing on it that identifies you or the vault.

I lose my phone.

Install MI8OS on another compatible phone, tap any card and enter the vault password to restore access.

I forget my vault password.

The vault cannot be reset or recovered. There is no reset option, recovery code or hidden way around the password.

MI8OS as a company disappears.

Your cards do not depend on an account or MI8OS server to hold their data.

Does the card need charging?

No. It has no battery and is powered by your phone during a tap.

Which phones work?

An iPhone or Android phone with the MI8OS app and a working contactless reader.

Keep your secrets
where you can hold them.

Carry that note encrypted €49,00