Bip39 Npm. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of protection in your wallet that actually works together with your seed phrase to encrypt and defend your wallet. A PIN, Alternatively, https://get-social-now.com/story4181418/bip39-mnemonic-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase