Bip39. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of stability in your wallet that works alongside your seed phrase to encrypt and safeguard your wallet. A PIN, On the flip side, https://social-galaxy.com/story4977730/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-generator