Bip39 Standard. Is passphrase the same as PIN? No, a passphrase is just not similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of stability to your wallet that works along with your seed phrase to encrypt and guard your wallet. A PIN, https://bookmarktune.com/story19448337/bip-39-https-linktr-ee-bip39-bip39-words-an-overview