Three reasons why you should NOT hack into the school computer system:
#1:The number one reason is it is WRONG. You shouldn't hack, plus, the grade you got is the grade you earned.
#2:It is also immoral. For example:If someone steels something from a store and the person doesn't get caught, is it wrong? Uhm... Yes!! Plus even if you didn't get caught, it sticks with you for the rest of your life and you can't get over what you did.
#3:Lastly you are cheating and lying to yourself. When you hack the school computer system, when your grade is changed, it becomes fake. You basically can just cheat yourself through school and it won't make you smarter, it'll just make you make dumb decisions later on in your life like becoming a criminal.