Bip39 Vs Slip39. 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 stability in your wallet that works along with your seed phrase to encrypt and protect your wallet. https://alphabookmarking.com/story18809612/bip39-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled