Bip39 Tool. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of protection to the wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://bookmarkshq.com/story20182024/bip39-passphrase-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work