Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of safety to your wallet that actually works along with your seed phrase to encrypt and shield your wallet. https://thebookmarkage.com/story18892067/bip39-generator-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf