Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of stability to your wallet that actually works together with your seed phrase to encrypt and defend your wallet. A PIN, https://icelisting.com/story20781236/bip39-passphrase-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described