Bip39 Npm. Is passphrase the same as PIN? No, a passphrase just isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of protection for your wallet that works alongside your seed phrase to encrypt and protect your wallet. A PIN, on https://socialaffluent.com/story4327543/bip39-passphrase-https-linktr-ee-bip39-not-known-facts-about-bip39