Bip39 Words. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security in your wallet that actually works along with your seed phrase to encrypt and protect your wallet. A PIN, https://privatebookmark.com/story19047990/bip-39-https-linktr-ee-bip39-the-bip39-wallet-diaries