Bip39 Npm. Is passphrase similar to 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 safety to your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. A PIN, https://tinybookmarks.com/story18762190/bip39-wallets-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39