I really don’t know now and threat. Such a software, if I had known, it is certainly will go to learn the knowledge, because I feel really is quite useful ah, and now I began to learn the knowledge, I can not believe their own learning does not. That day my computer has some problems, then I asked a friend to fix it for me, he told me is, if I can learn some knowledge concerning the threat defense. Soon the these problems can be solved, he later told me some of this knowledge, I think it is very interesting, so I just want to to learn the knowledge. And I also believe that to my ability, would have to take this threat defense knowledge learning is very good.