Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase isn't the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of safety for your wallet that actually works alongside your seed phrase to encrypt and protect your wallet. A PIN, On https://express-page.com/story4213777/bip39-mnemonic-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled