Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of security in your wallet that works together with your seed phrase to encrypt and secure your wallet. https://bookmarkinglife.com/story4385363/bip39-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work