The Sparrow Password and the Passphrase

Sparrow uses a relatively slow key derivation i will grow them by choice in order to make it more difficult to attack. It creates a completely different invalid wallet if that's you know the effect of the passphrase is really to be able to add this this additional thing which creates a wallet that only you kind of know about. You are then able to ensure that even should your sparrow wallet password be found or indeed your device pin that passphrase given the fact that it's a different thing somebody would have to enter in a pass passphrase and then go and check the blockchain to see whether there are any funds for that particular wallet they have now created. That's a very much slower