CNET (San Francisco, Sept. 21) – The idea of plugging a random USB flash drive into your computer may sound absurd, but a 2015 experiment conducted by CompTIA found that one in five people who picked up a stray USB flash drive would plug it into their computer. Even worse, a study done this year at Illinois showed that 48 percent of people who picked up a USB flash drive in a parking lot would insert it and open files.