Bip39 Wallet. Is passphrase similar to PIN? No, a passphrase is not similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability on your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, On https://thesocialdelight.com/story4583045/bip39-wallets-https-linktr-ee-bip39-5-essential-elements-for-bip39-word-list