Furthermore, BIP39 defines the passphrase solution, that provides a reasonable volume of additive security in case your seed phrase is stolen or in any other case accidentally exposed. Having said that, Additionally, it provides some possibility, so it is suggested for more knowledgeable end users. This text points out BIP39, https://wise-social.com/story4966389/facts-about-bip39-seed-phrase-word-list-revealed