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 extra layer of protection on your wallet that works along with your seed phrase to encrypt and shield your wallet. A https://bookmarkfox.com/story4202061/bip39-words-https-linktr-ee-bip39-bip39-generator-an-overview