Bip39 Standard. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of protection in your wallet that actually works along with your seed phrase to encrypt and shield your wallet. https://socialskates.com/story20054765/ian-coleman-bip39-https-linktr-ee-bip39-a-review-of-bip39-generator