Bip39 Dictionary. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection in your wallet that actually works along with your seed phrase to encrypt and defend your wallet. A https://social-lyft.com/story8463140/bip39-passphrase-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy