Bip39 Ian Coleman. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of security on your wallet that works together with your seed phrase to encrypt and defend your wallet. https://bookmarklogin.com/story18872124/bip39-words-https-linktr-ee-bip39-what-does-ian-coleman-bip39-mean