Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase is not similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of protection to the wallet that actually works along with your seed phrase to encrypt and defend your wallet. A PIN, https://socialwebconsult.com/story4257193/bip39-generator-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained