Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of stability in your wallet that actually works along with your seed phrase to encrypt and safeguard your wallet. A PIN, https://nybookmark.com/story21282402/bip39-wallets-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described