Bip39 Seed. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of stability towards your wallet that actually works together with your seed phrase to encrypt and defend your wallet. A PIN, https://wearethelist.com/story20632201/bip39-word-list-pdf-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work