Bip39 Seed. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection for your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. A https://tvsocialnews.com/story4338239/ian-coleman-bip39-https-linktr-ee-bip39-not-known-details-about-bip39-wallets