Bip39 Word List Numbers. Is passphrase similar to PIN? No, a passphrase is not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of security to the wallet that actually works alongside your seed phrase to encrypt and safeguard your wallet. A PIN, https://travialist.com/story9363641/bip39-wallet-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39