Bip39 Ian Coleman. Is passphrase similar to 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 on your wallet that works together with your seed phrase to encrypt and shield your wallet. A PIN, https://altbookmark.com/story20297546/bip39-passphrase-https-linktr-ee-bip39-top-latest-five-bip39-generator-urban-news