Bip39 Seed. Is passphrase the same as PIN? No, a passphrase isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection towards your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, on https://altbookmark.com/story20390671/bip-39-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase