Bip39 Dictionary. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an extra layer of protection to the wallet that works along with your seed phrase to encrypt and shield your wallet. A PIN, https://throbsocial.com/story21391180/bip39-wallets-https-linktr-ee-bip39-about-ian-coleman-bip39