Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of protection in your wallet that actually works alongside your seed phrase to encrypt and protect your wallet. https://bookmarkleader.com/story18948956/bip39-https-linktr-ee-bip39-bip39-words-fundamentals-explained