Bip39 Mnemonic. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection to the wallet that works along with your seed phrase to encrypt and shield your wallet. A PIN, https://throbsocial.com/story20674324/bip39-wallet-https-linktr-ee-bip39-a-review-of-bip39-generator