Bip39 Word List Numbers. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security for your wallet that works along with your seed phrase to encrypt and secure your wallet. https://bookmark-group.com/story4302609/ian-coleman-bip39-https-linktr-ee-bip39-an-unbiased-view-of-bip-39