I seen a college course named "Ethical Hacking" What might that be? Just teaching you hacking so you can't be hacked?

first you need to identify the hackers ethics

Access to computers — and anything which might teach you something about the way the world works — should be unlimited and total. Always yield to the Hands-on Imperative!
All information should be free.
Mistrust authority — promote decentralization.
Hackers should be judged by their hacking, not bogus criteria such as degrees, age, race, or position.
You can create art and beauty on a computer.
Computers can change your life for the better.

i found this in 5 seconds as well as "the conscience of a hacker" essay by mentor and using google and wikipedia it took me 2 minutes to come up with a fairly detailed answer however ive now given you the info to inform yourself. go and find out on your own and you will cherish the info much more.

There is such things as White Hat hackers:
http://en.wikipedia.org/wiki/Hacker_...y%29#White_hat

Which do things for the good, but can still be punished legally as any other hacker (good or bad) could be