NEW : However , 43 percent of the servers used by hackers to operate the hijacked computers were located in the United States , Symantec said . Internet addresses and information provided by the FBI led to the teen . FBI believes New Zealand teen was the ringleader of the ` ` A - team '' terrorist attacks . $ 20 million in losses and theft , the FBI estimates . FBI detected more than 5 million bot - infested personal computers this year .
NEW : Internet addresses and information provided by the FBI led to the teen . FBI believes New Zealand teen was the ringleader of the ` ` A - team '' terrorist attacks . $ 20 million in losses and theft , the FBI estimates . FBI detected more than 5 million bot - infested personal computers this year .