Bip39 Standard. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of stability towards your wallet that works along with your seed phrase to encrypt and shield your wallet. A PIN, on https://thebookmarklist.com/story18692068/bip39-https-linktr-ee-bip39-not-known-details-about-bip39-list