Bip39 Standard. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of protection to the wallet that actually works together with your seed phrase to encrypt and protect your wallet. https://bookmarkplaces.com/story19318898/ian-coleman-bip39-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic