Bip39 Standard. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of stability to the wallet that actually works together with your seed phrase to encrypt and defend your wallet. A https://thebookpage.com/story4128071/bip39-list-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39