Bip39 Checksum. What this implies is if you set a passphrase after you configure your wallet, and You then place some copyright into your wallet - all is well; the thing is your copyright! But then if you choose to put in a next wallet, utilizing just your seed phrase https://topazdirectory.com/listings13005756/bip39-list-https-linktr-ee-bip39-facts-about-bip39-checksum-revealed