Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of stability for your wallet that actually works together with your seed phrase to encrypt and shield your wallet. A https://mixbookmark.com/story4179554/bip39-wallets-https-linktr-ee-bip39-getting-my-bip39-wallets-to-work