Bip39 Tool. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of security towards your wallet that actually works alongside your seed phrase to encrypt and defend your wallet. https://letsbookmarkit.com/story18885077/bip39-https-linktr-ee-bip39-bip39-words-fundamentals-explained