The Riddle of Cryptosteel

The Cryptosteel Permanent Seed Phrase Backup System

A closer look at the thought process behind creating today’s icon of Bitcoin hardware wallet mnemonic seed phrase backup. Follow the inspiring story of Cryptosteel from inspiration to standardization.
Tested in temperatures up to 2461°F

CONFIRMED! Lab Tests prove the Cryptosteel® Capsule is Fire-resistant Seed Phrase Storage, Withstanding Even 2461°F Extreme Heat!

We conducted a heat test to check the resilience of the Cryptosteel Capsule. The study showed that even at 2461°F (1350°C) the data stored inside the device is secure and stays legible.
Cryptosteel Capsule NOIR


We’re expanding our hit product line by adding a stylish and glossy black finish version by adding a layer of innovative BALINIT® C coating. Functional design and sophisticated aesthetics, creating the newest iteration of the legendary Capsule…
Four-letter Words Are the Standard for Recovery Seed Backup

Why Are Four-letter Words the Standard for Recovery Seed Backup?

Cryptosteel - a Paradigm of Hardware Wallet Backups Secure offline storage of your private key is one of the foundations of self-custodianship. Welcome to the world of Cryptosteel products: the Cassette and Capsule are designed as easy-to-use…
Limited-print woodblock printed design by Rafael Akahira


On the first anniversary of the Cryptosteel Capsule, we are cooperating with the artist Rafael Akahira to produce limited, numbered works of art that symbolize the values of the Capsule.  Each piece of art is numbered to 12, and…

Capsule Anniversary – Limited Edition

As the first anniversary of the Capsule approaches, we worked with the artist Rafael Akahira, who  created a special, limited-stock art design to be included in the next 700 orders. Printed on a half-sleeve for the Cryptosteel box, it…

Cyber Week 2020

Black Friday and Cyber Monday are world-famous these days, but we wanted to do something a bit different. We have combined both of these days into a whole CYBER WEEK. Lasting until December 2nd, all Cryptosteel products, including bundles,…

How to Create a Permanent Backup in Minutes

Offline permanency can be achieved in just minutes with Cryptosteel. You can have a completely offline and secure backup with no special tools or technical ability.

Anatomy of the Capsule

The Cryptosteel Capsule is a universal backup tool that features many elements with a wide range of uses. Understanding the anatomy of the Capsule is not only important to maximize its potential...

SPLITTING THE SECRET. The case for Shamir Backup with the Cryptosteel Capsule

The Shamir Backup system has revolutionized the Cryptocurrency world by creating a new standard of Master Seed protection. By splitting your information up and requiring a certain minimum to access the Master Seed, Shamir Backup has become one of the best methods for securing your data.