Bip39 Npm. Is passphrase the same as PIN? No, a passphrase is not similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of safety to the wallet that actually works together with your seed phrase to encrypt and safeguard your wallet. A PIN, https://socialbraintech.com/story4109655/bip39-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets