Bip39 Seed Generator. Is passphrase the same as PIN? No, a passphrase isn't similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security in your wallet that actually works together with your seed phrase to encrypt and protect your wallet. A PIN, https://get-social-now.com/story4964225/bip39-mnemonic-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled