Bip39 Github. Is passphrase the same as 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 to your wallet that actually works along with your seed phrase to encrypt and secure your wallet. https://ariabookmarks.com/story4359597/bip39-wallet-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained