Bip39 Ian Coleman. Is passphrase the same as PIN? No, a passphrase will not be similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of stability to the wallet that actually works together with your seed phrase to encrypt and protect your wallet. https://bookmarkforce.com/story19143296/bip39-words-https-linktr-ee-bip39-about-ian-coleman-bip39