Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection to the wallet that works alongside your seed phrase to encrypt and guard your wallet. A PIN, On https://ragingbookmarks.com/story18666406/bip39-passphrase-https-linktr-ee-bip39-a-review-of-bip39-generator