Tamper evident plastic bag consultation Sign transactions & transfer XPUB

Sign transactions & transfer XPUB data using animated QR codes

custodial risk

Optimized seed word entry interface

During this consultation you will learn how to:

The Coldcard Mk4 is the on cutting edge of Bitcoin security

Tamper evident plastic bag consultation Sign transactions & transfer XPUBThese bags are perfect for storing your seed words in. They cannot be opened without making the fact evident. Ideally, you should protect your seed words with a passphrase, which further enhances the security of your Bitcoin self custody solution. These bags are great if you require a family member to store your seed words, but don't want them to be visible.