Bip39 Mnemonic. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of protection in your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://extrabookmarking.com/story18814374/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-generator