Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of stability to your wallet that works along with your seed phrase to encrypt and secure your wallet. A PIN, on https://thejillist.com/story9853452/bip39-word-list-https-linktr-ee-bip39-about-ian-coleman-bip39