Bip39 Words. Is passphrase the same as PIN? No, a passphrase is just not similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection to your wallet that actually works along with your seed phrase to encrypt and safeguard your wallet. https://bookmarkinglog.com/story19119404/bip39-words-https-linktr-ee-bip39-not-known-facts-about-bip39