Don't get mad, point him down the right path and encourage his interest. There are more than enough articles around concerning ethical hacking etc.
If he continues to learn unaided and from dubious sources he will probably end up as a script kiddie. You could potentially change this by introducing him to programming things for himself.
If he continues to learn unaided and from dubious sources he will probably end up as a script kiddie. You could potentially change this by introducing him to programming things for himself.