Bip39 Standard. 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 extra layer of protection for your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. https://dmozbookmark.com/story18947330/bip-39-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained