Bip39 Passphrase. At the start you need to store it SEPARATELY out of your seed. Getting your seed and your passphrase in exactly the same location defeats the goal of having a passphrase to start with. With out a passphrase, your cash are only as secure as your seed phrase. https://growthbookmarks.com/story19574461/bip39-generator-https-linktr-ee-bip39-top-guidelines-of-bip39-words