Well, Hogfly, I'm very excited that you've done a good deed. I agree with FlashOveride, though. You need to get a company's permission before you go around hacking their sites. Just because you have no harmful intentions, they don't know that when they log you accessing their system. But don't let that dissuade you. What you have done is a great thing, but I would be careful about the way you execute it. You probably helped out their security people greatly by doing so.

***Note to all***
Even the Security Specialists might miss a few loopholes. It's always nice to have someone help us out, just as long as they do it legally (i.e., with permission in advance). Compare it to a school paper that you had to write. Since you know what it says when you look over it, you might not catch all the mistakes. It's just the same with computer security. The point is, thank you to all of those true, real, respectable hackers out there, not crackers, but the one's who actually help people out. Without you, the Internet would completely cease to exist.

Thank you for your attention, and may God bless you all