Hey @punkysdad, https://leofinance.io/ does run on the Hive blockchain so it is part of Hive in that it uses the same keys (passwords) to access it. You can fine a wealth of info on blockchain and Leo here https://leopedia.io/

In the mean time I recommend using HiveKeychain to store your keys, it is a chrome extension that you can find in the chrome webstore (I'm assuming you use a windows machine, but I think apple has this too) https://chrome.google.com/webstore/search/hive%20keychain

Hope this helps!