Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase is not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection on your wallet that actually works together with your seed phrase to encrypt and defend your wallet. https://thesocialvibes.com/story4668473/bip39-passphrase-https-linktr-ee-bip39-a-review-of-bip39-generator