Bip39 Word List Numbers. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of security towards your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. https://socialrator.com/story10616027/bip39-wallets-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work