Bip39 Npm. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability for your wallet that actually works along with your seed phrase to encrypt and shield your wallet. A PIN, https://nybookmark.com/story20382395/bip39-https-linktr-ee-bip39-not-known-details-about-bip39-wallets