Bip39 Ian Coleman. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of security towards your wallet that works alongside your seed phrase to encrypt and safeguard your wallet. A PIN, https://friendlybookmark.com/story19437083/bip-39-https-linktr-ee-bip39-bip39-generator-an-overview