Bip39 Python. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of protection to your wallet that actually works together with your seed phrase to encrypt and secure your wallet. A PIN, https://webcastlist.com/story19902192/bip39-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic