What was Teddy good at and how?

Teddy was good at hacking computers, getting into private information in the computer, and stealing money from certain hacks. Ever since he was in high school he will hack the school computer to get his grades higher. Teachers soon found out when they saw a test grade that was better than most students that studdy and do their work. He then wanted to drop out of school after a while. Another way I can tell that Teddy is good hacker is when he got home from juvie he already had a plan on how to hack another school computer. Teddy then did some research and went to his old high school, he had a disk that let him hack the principle's computer with out leaving a trace unlike the other hacks he did. Teddy got an excuse so he could use the principle's computer and hack it by putting so major things on his hacking disck. So he continued with his hack and stole a bunch of money from the school. It was also good that Teddy hacked the computer because he got info about his sisters' killer. The surprising part is that he didn't get caught by the police at all.