Bip39 Seed Phrase. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection for your wallet that works along with your seed phrase to encrypt and shield your wallet. https://bouchesocial.com/story21696173/bip39-mnemonic-https-linktr-ee-bip39-what-does-ian-coleman-bip39-mean