Bip39 Passphrase. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection to the wallet that works together with your seed phrase to encrypt and guard your wallet. A PIN, https://bookmarksknot.com/story20556223/bip39-passphrase-https-linktr-ee-bip39-bip39-generator-an-overview