Bip39 Mnemonic Generator. 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 to your wallet that works along with your seed phrase to encrypt and shield your wallet. A PIN, on https://bookmarkspring.com/story14640050/bip39-generator-https-linktr-ee-bip39-the-fact-about-bip39-words-that-no-one-is-suggesting