Bip39 Generator. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security to your wallet that actually works along with your seed phrase to encrypt and guard your wallet. A PIN, https://bookmarklinking.com/story6668495/bip39-https-linktr-ee-bip39-bip39-words-fundamentals-explained