Schools aren't secure anyways (Score 1)

Right now I'm posting from my school. I attend a high school, in the states, and have about a C average. I'm the school systems worst nightmare. I don't really have much to lose, and the teachers are too dumb to catch me doing anything wrong anyways.
The schools security policy is a joke. There is one password that covers almost everything. (the password starts with a "cl" and rhymes with "bass") I can, just navigate to the right place on the network, type in the pass, and see information on any student in the school. Now, changing grades are a little more difficult. Luckily, the software that the school uses to maintain grades in on the school's internal server. So all I had to do was download it, install it, and go nuts. Oh, and using that beautifully thought through password, I have installed some keyloggers on some machines, and have plenty of teachers passwords (i.e. can change my grades, or anyone elses).
So, long story short, school security sucks. I'm much more of a linux guy, than a windows guy, and I was able to fly through the network in one class period... Somebody needs to teach these schools right.