No it's not right because he is not supposed to use his technological use to do bad stuff . Like mess the school's property, get into someone else's profile or blog. For his punishment he could get a detention or something that could hurt him. And by the way the sign  "It's MY school" It is not even his school it's every body's. And he is also not supposed to tell the other kids what he has learned. Why? Because he can get into so much trouble like the kids he has been showing this stuff to they're on his side and when they're actually in trouble they're not on his side they turn him down. By telling the teacher's that he started it.