Given the history of people being identified from "anonymous" records (thanks a lot, information theory) ... well, I'm glad I'm not banking with the NAB.
You misunderstand. This is not an anonymous data-dump like the AOL fiasco, and there is no way to get any raw data.
Basically you just pick a few things like your age, salary and where you live, and then out of all of the people out there "like you", you're shown an average of where people like you tend to spend their money (travel, food, etc.).
Even if you spent a lot of time manipulating the data to try and get it to tell you one person's spending by category (assuming it were possible), the data would be relatively meaningless.
Agreed, I wonder what exactly they did to anonymise the data. Reminds me of this quote from Homer in The Simpsons:
Well, let's just call them, uh, Mr. X and Mrs. Y. So anyway, Mr.X would say, 'Marge, if this doesn't get your motor running, my name isn't "Homer J. Simpson."
Basically you just pick a few things like your age, salary and where you live, and then out of all of the people out there "like you", you're shown an average of where people like you tend to spend their money (travel, food, etc.).
Even if you spent a lot of time manipulating the data to try and get it to tell you one person's spending by category (assuming it were possible), the data would be relatively meaningless.