Bip39 Standard. What this implies is that should you set a passphrase if you configure your wallet, and Then you really set some copyright into your wallet - all is very well; the thing is your copyright! But then if you choose to put in a 2nd wallet, working with https://lombok-directory.com/listings13058850/bip39-passphrase-generator-https-linktr-ee-bip39-the-greatest-guide-to-bip39-checksum