Bip39 Mnemonic. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection to the wallet that works together with your seed phrase to encrypt and secure your wallet. A PIN, https://mypresspage.com/story4134339/bip39-generator-https-linktr-ee-bip39-the-bip39-wallet-diaries