Bip39 Mnemonic Generator. Is passphrase the same as PIN? No, a passphrase is not the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of stability to the wallet that actually works together with your seed phrase to encrypt and protect your wallet. https://socialbuzzfeed.com/story4514565/bip39-passphrase-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work