the crime made her feel totally unsave. elaine, good morning. >> it's blackshades rat.tigators say it's incredibly cheap and simple to use. miss teen usa was one of the highest profile victims. many more have been affected and don't know it. >> congratulations, you are the new miss teen usa, 2013! >> reporter: she may be one of a kind on the pageant stage, but miss teen usa, cassidy wolf is among half a million people whose computer was infected with blackshades. >> he watched me in my room for a year, then blackmailed me with the photos he took. >> reporter: nude photos he threatened to share online. instead, she called the fbi and her hacker was sentenced to 18 months in federal prison for extortion and unauthorized access of a computer. now the justice department announced the arrest of 90 others linked to the mallware. >> we live in a world where for $40, a cyber criminal half way across the globe, can, with a click of the mouse, unleash a rat that can spread a computer plague not only on your property, but your privacy and most personal spaces. >> reporter: fbi inv