The Americans are the most gullible, because they don't like to deny co-workers' requests.
Not only are all of his skills ... oriented toward computers, but even if he were to not want to work in the computer field, it's very hard to get a job of any kind that does not require you to work with computers.
Use a personal firewall. Configure it to prevent other computers, networks and sites from connecting to you, and specify which programs are allowed to connect to the net automatically.
I'm an expert witness in a case that's in appeal about a guy who allegedly misappropriated source code from a major, major company - he actually worked there and then apparently they found it on his laptop later.
My hacking was all about becoming the best at circumventing security. So when I was a fugitive, I worked systems administrator jobs to make money. I wasn't stealing money or using other people's credit cards. I was doing a 9-to-5 job.
Phone phreaking is a type of hacking that allows you to explore the telephone network by exploiting the phone systems and phone company employees.
The explosion of companies deploying wireless networks insecurely is creating vulnerabilities, as they think it's limited to the office - then they have Johnny Hacker in the parking lot with an 802.11 antenna using the network to send threatening emails to the president!