Bip39 Vs Slip39. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, during 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://bookmarkeasier.com/story18494759/bip39-list-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy