Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security towards your wallet that actually works along with your seed phrase to encrypt and secure your wallet. https://thebookmarkid.com/story18937510/bip39-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39