Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security in your wallet that works along with your seed phrase to encrypt and guard your wallet. A PIN, Alternatively, is https://thesocialdelight.com/story4423715/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-generator