Bip39 Dictionary. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of protection in your wallet that works along with your seed phrase to encrypt and secure your wallet. A PIN, https://mypresspage.com/story4263635/bip39-passphrase-https-linktr-ee-bip39-not-known-details-about-bip39-wallets