Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of security to the wallet that actually works together with your seed phrase to encrypt and protect your wallet. https://cyberbookmarking.com/story18948869/bip39-words-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets