If he's a hacker he won't stop. I saw like, 3 movies on that sort of thing, (an 11 year old crashed the Bank of Congresses computer), and I saw a documentary on hackers where a guy went under cover as a hacker. BEWARE!! They do not stop until you give them full control, kill your own honour, and begbegbeg until they stop. That is, unless he has a motive other than a feeling of power.