Bip39 Word List Numbers. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security to the wallet that works together with your seed phrase to encrypt and safeguard your wallet. https://socialrator.com/story9589483/bip39-mnemonic-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic