Bip39 Seed. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability in your wallet that actually works along with your seed phrase to encrypt and secure your wallet. A https://bookmarkcork.com/story19517336/bip39-passphrase-https-linktr-ee-bip39-not-known-details-about-bip39-wallets