Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of safety for your wallet that works along with your seed phrase to encrypt and guard your wallet. A PIN, https://sociallweb.com/story5106563/bip39-generator-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39