Bip39 Mnemonic Code Converter Tool. Is passphrase the same as PIN? No, a passphrase is not similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of safety to your wallet that works together with your seed phrase to encrypt and safeguard your wallet. https://nanobookmarking.com/story18668901/bip39-passphrase-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf