Bip39 Word List Numbers. 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 extra layer of protection to the wallet that works together with your seed phrase to encrypt and shield your wallet. https://extrabookmarking.com/story18933856/bip39-passphrase-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described