https://www.schneier.com/blog/archives/2011/06/yet_another_p...
> Computer disks and USB sticks were dropped in parking lots of government buildings and private contractors, and 60% of the people who picked them up plugged the devices into office computers. And if the drive or CD had an official logo on it, 90% were installed.
It sounds more like someone left usb sticks with logos on them in the parking lot.