Bip39 Github. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of stability to the wallet that works together with your seed phrase to encrypt and defend your wallet. A PIN, However, https://sitesrow.com/story8738467/bip-39-https-linktr-ee-bip39-about-ian-coleman-bip39