Does anyone have thoughts on the potential damage of your online banking account being hacked? I'm not sure what a person could actually do since I think they could really only pay my bills (adding a new payee would require additional security information to set up). They might be able to see my account number I suppose since they could look at scanned checks, but even that doesn't seem like a large risk.
The reason I ask is that I am weighing the risks of signing up to things like Mint and Level.
edit: From what I understand, when a new payee has been added to the account, I have to enter my debit card number. I also have two-factor authorization turned on, but for this question I would like to consider the case if I did not have it turned on (which I imagine resembles most users).
I'm going to see if I can clarify my question further. I'm curious to know what are the possible devious things a stranger could do if they had access to my bank account.