Bip39 Seed Generator. Is passphrase the same as PIN? No, a passphrase is just not similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of security for your wallet that actually works together with your seed phrase to encrypt and protect your wallet. https://nybookmark.com/story21211247/bip39-passphrase-https-linktr-ee-bip39-getting-my-bip39-wallets-to-work