If I were to guess, probably many different types of media. Music CDs, DVDs disks, usb. Maybe those types of facilities are 99% focused on keeping data from le

If I were to guess, probably many different types of media. Music CDs, DVDs disks, usb. Maybe those types of facilities are 99% focused on keeping data from leaving. But employees were bringing plenty of media to listen to while watching the monitors before stuxnet. A typical facility would likely scan that incoming media and pass it to you later if it was okay’d. You aren’t allowed to ever take that media out again, however. I’m just guessing though.