Bip39 Ian Coleman. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of security in your wallet that works together with your seed phrase to encrypt and defend your wallet. https://bookmarkworm.com/story18944810/bip39-generator-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic