Bip39-Standalone. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety to your wallet that works alongside your seed phrase to encrypt and secure your wallet. A PIN, Then again, https://thefairlist.com/story8804588/bip39-passphrase-https-linktr-ee-bip39-bip39-words-fundamentals-explained