Bip39 Seed. The passphrase is not selected in the predefined list of 2048 words – it can be any word or phrase you choose. By making use of a passphrase, you increase an extra layer of protection to your wallet, protecting your money even when your seed phrase is compromised. https://mylittlebookmark.com/story4682506/bip-39-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained