Bip39 Words. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of security on your wallet that actually works along with your seed phrase to encrypt and guard your wallet. A PIN, However, https://altbookmark.com/story20488898/bip-39-https-linktr-ee-bip39-a-review-of-bip39-words