Originally Posted by marta
I mean i want to learn 'bout computer specially internet security and pc security.. not only system but also server
I want the impact is i understand which is virus program or my program
Have you heard of computer science? That could be a good start I guess. You can learn about how computers work and some programming on the way. Maybe later you can learn all about security breaches, malicious programs, and possible countermeasures. I don't know if this is what you're looking for but sounds about right.