Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase is not the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of security in your wallet that actually works alongside your seed phrase to encrypt and defend your wallet. https://cruxbookmarks.com/story19381338/bip39-wallets-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained