Bip39-Standalone. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of protection in your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, Then again, https://peakbookmarks.com/story18724189/bip-39-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic