11 signs your kid is hacking -- and what to do about it

I've shared a lot of security knowledge in my tenure as InfoWorld's Security Advisor. But what I've never shared before is that much of my initial computer security defense knowledge, which I turned into my first book, came from trying to stop my teenage stepson from being a malicious hacker.
I was newly dating his mother and he was a precocious 15-year-old who liked messing around with electronics and computers. He and his closest friends also flirted with malicious hacking, including har