Bip39 Passphrase. Is passphrase the same as PIN? No, a passphrase just isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection to your wallet that works together with your seed phrase to encrypt and protect your wallet. A https://infopagex.com/story3964198/bip39-word-list-pdf-https-linktr-ee-bip39-about-ian-coleman-bip39