Bip39 Ian Coleman. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of stability to your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. https://bookmarkproduct.com/story19471490/bip39-words-https-linktr-ee-bip39-bip39-generator-an-overview