Bip39 Tool. Is passphrase the same as PIN? No, a passphrase is not really the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of safety to the wallet that actually works alongside your seed phrase to encrypt and shield your wallet. https://thejillist.com/story9186008/bip39-passphrase-https-linktr-ee-bip39-top-guidelines-of-bip39-words