Bip39 Seed. Is passphrase the same as 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 for your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://socialwoot.com/story20441731/bip39-words-https-linktr-ee-bip39-not-known-details-about-bip39-wallets