Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase will not be similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection for your wallet that actually works together with your seed phrase to encrypt and defend your wallet. https://mylittlebookmark.com/story4974086/bip39-generator-https-linktr-ee-bip39-top-latest-five-bip39-list-urban-news