Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of protection on your wallet that actually works alongside your seed phrase to encrypt and safeguard your wallet. A PIN, https://singnalsocial.com/story4473916/bip39-generator-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy