Bip39 Mnemonic Code Converter Tool. Is passphrase the same as PIN? No, a passphrase just isn't similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of protection in your wallet that works along with your seed phrase to encrypt and guard your wallet. https://myfirstbookmark.com/story19197471/bip39-passphrase-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic