Bip39 Mnemonic. Is passphrase the same as PIN? No, a passphrase isn't similar to a PIN. A passphrase, inside 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://binksites.com/story8557100/bip39-generator-https-linktr-ee-bip39-a-review-of-bip39-generator