How I Would Try to Hack Your Mint.com Account
jasonowens.com
jasonowens.com
(Downmodded? Last time I checked, there's no "transfer all my money to an offshore bank account" button, nor are the passwords to the linked sites available. So while annoying that some dude on the Internet can see that you have lunch at McDonalds every day, it's not going to cost you any money.)
Also, if I stole a credit card, seeing what purchases someone has made in the past would let you make a larger number of future purchases without getting the card blocked.
Hacking email account still seems to be one of the best rewards for lowest difficulty.
Downmodded?
Please, wait a few hours before complaining about that and providing additional explanations. It usually evens out.For instance, say that you're a senator and you've made some enemies. If these enemies could log in to your account, they could reveal some "suspicious charges" from an escort or pornography service, or perhaps they'd notice some large expenditures on airfare and travel when you were supposedly just off for a weekend hike (Mark Sanborn). All of these things are bad.
That's a prominent example, but the same could be done to anyone you wanted some leverage against, be it a teacher, supervisor, or anyone else. Yes, it'd be ideal if people didn't do things that destroy their careers and/or families in the first place, but often times that's not how people work.
You'd probably do far better at embarrassing someone by going through their email, which is a necessary step for several of these methods.
Yes, some other information was required too, and no, I don't know what good a credit report does you either.
I'm not exactly concerned about the security of my school account, but it could potentially suck to have it compromised.
Pointing out one specific flaw in one specific service is about as useful & damaging as pondering new theoretical ways terrorists could strike the US.