Bip39-Standalone. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety on your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. A PIN, On https://bookmarkworm.com/story19033863/bip39-mnemonic-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained