Bip39 Github. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of safety to the wallet that works together with your seed phrase to encrypt and secure your wallet. A PIN, https://onelifesocial.com/story5006306/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-generator