Bip39 Seed. Is passphrase similar to PIN? No, a passphrase isn't similar to a PIN. A passphrase, from 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 PIN, On the flip https://socialicus.com/story4077381/bip39-passphrase-https-linktr-ee-bip39-5-essential-elements-for-bip-39