Bip39 Npm. Is passphrase the same as PIN? No, a passphrase is not similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of protection to the wallet that works along with your seed phrase to encrypt and protect your wallet. A PIN, on https://socialbraintech.com/story4155119/bip39-passphrase-https-linktr-ee-bip39-bip39-generator-an-overview