Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of security towards your wallet that works along with your seed phrase to encrypt and protect your wallet. A PIN, However, is https://bookmarkassist.com/story18667137/bip39-wallets-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy