Bip39 Dictionary. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of protection in your wallet that actually works together with your seed phrase to encrypt and protect your wallet. A PIN, https://wiishlist.com/story19331387/bip39-passphrase-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39