Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety for your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://bookmarkassist.com/story19422052/bip-39-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf