Bip39 Standard. Is passphrase the same as PIN? No, a passphrase is just not 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 along with your seed phrase to encrypt and shield your wallet. https://crossbookmark.com/story18665309/bip-39-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained