Bip39 Npm. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety to the wallet that works together with your seed phrase to encrypt and safeguard your wallet. A PIN, https://getidealist.com/story21158923/bip39-https-linktr-ee-bip39-the-best-side-of-bip39-mnemonic