Bip39 Npm. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of safety on your wallet that actually works together with your seed phrase to encrypt and secure your wallet. https://thesocialdelight.com/story4110468/bip39-passphrase-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work