Dr. Spencer Reid:  The spam had to be converted from matrix code to binary code , then switched to base _ eight _ before being translated back into letters . I can go into more detail if you want .
Aaron Hotchner: No . How smart would a person have to be to write code like that ?
Dr. Spencer Reid: Beyond smart . Profoundly gifted . An IQ of at least 160 .
Emily Prentiss: That changes the profile , then .
Dr. Spencer Reid: The UnSub could still hold a menial or low - level job . Many believe that beyond an IQ of 120 , success is determined by other factors .