Bip39 Seed. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety to the wallet that actually works alongside your seed phrase to encrypt and shield your wallet. https://optimusbookmarks.com/story19528714/bip39-mnemonic-https-linktr-ee-bip39-about-ian-coleman-bip39