What's the worst-case scenario if your financial data were publicly available? I don't mean your login credentials or other personal information necessary to access your financial accounts; obviously that's inviting identify theft and stolen money. I just mean your accounts, balances, and transactions.
Is there any security risk associated with that data? I suppose if you're worth a lot of money, maybe the worry is that you could become a target for having your money stolen. But I wonder how much is perceived risk, versus actual risk.
The other concerns I can think of all seem to be social: Embarrassment at purchases made or amounts spent. Awkwardness at having more money than friends, or having less, or being better or worse at managing what you do have. Indignance — the "what business is it of yours?" response.
I ask because I'm considering the security risks of downloading all my financial data from Yodlee into my own database, so I can run whatever analysis I want on it. I want to imagine the worst-case scenario: that my machine is not secure, and some hackers are able to read all my financial data. What mischief could they do with it? Brainstorming in comments and by email welcome!