Targeted Attacks

I found a friend has been very busy recently, I do not know what he was busy, I have contacted him several times, he said it was in overtime, I would wonder, because he can be said that there has never been such a phenomenon, just yesterday when my friends about the initiative later, when the two of us chat, I know, friends have recently been doing some investigation of Targeted Attacks, although that is the investigation of this Targeted Attacks I don’t know what friends say, but I can feel it should be a very technical knowledge, I wanted to be ask some friends Targeted Attacks knowledge, but then thought for a moment, we finally see again, wait until after the chance I’ll ask him about the Targeted Attacks survey knowledge.