Bip39-Standalone. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of safety to your wallet that actually works along with your seed phrase to encrypt and defend your wallet. A PIN, https://fatallisto.com/story8596773/bip39-wallets-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained