Cold wallet chainlock

chainlock is a simple and highly secure offline cold wallet, protecting your digital assets from unauthorized access. Discover chainlock as the ideal solution for long term investors who value maximum security.

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Load chainlock

Verify the card's authenticity via chainlock App. Load the card by scanning the QR code and send the desired amount.

Unload chainlock

Reveal the private key by removing the security seal. Read the private key into your wallet or app using a QR code or manual entry.

How it works

Easy use
for longterm
security

Follow only a few easy steps to load crypto on your personal secure chainlock card. To unload your digital assets, follow the according procedure.

Utilized expertise

Produced with security in mind

chainlock is produced in a specially sealed area within the high security perimeter of the Austrian State Printing House and has the same security level as the official state documents of the Republic of Austria.

Certified High Security

chainlock is produced within the Austrian State Printing House, an ISO-certified high security printer

High Entropy for Secure Keys

Utilizing BSI-certified number generators together with software sources for secure key generation

chainlock App for Value Check

Connect your chainlock card with our official chainlock app to display the FIAT value of assets in realtime

Security Features

Front of the card

Security Features

Back of the card