In addition, BIP39 defines the passphrase selection, that provides a average number of additive safety just in case your seed phrase is stolen or or else accidentally exposed. Having said that, What's more, it adds some risk, so it is usually recommended for more experienced end users. On this page https://bookmarksknot.com/story21322966/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting