Bip39 Online. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security on your wallet that actually works along with your seed phrase to encrypt and secure your wallet. https://bookmarksoflife.com/story5226018/bip39-passphrase-https-linktr-ee-bip39-not-known-details-about-bip39-list