Staggering.

just goes to show how everything uses computers and can be a target.

lol checking there mail! I rekon it was facebook they were playing games on facebook

They were trying to upload the code for Angry Birds into their drones to play a live action angry birds.   

Or they saw the cool Wireless Network Scanning drone and figured why can't they have one too and found the "Free DIY Kit" online.

But seriously, I am finding that many folk are under the impression that just because they encrypt their USB drive, they are safe from all harm.  So if this did transfer, I bet it was on an encrypted drive that had actually never been properly cleaned when it got infected with malware at some point.

Bwahahaha!!!  Thanks 3xban!  That gave me a good wakeup laugh this morning!

USB is probably the easiest way it could've been done.  Drop a USB in a parking lot, or near an employee area.  What would you do if you found a USB on the ground?  Plug it in and see what's on it so you can keep it or return it.  Employee finds it, plugs it in, and its over before he even knows what just happened.  There were rumors that that's how the US shutdown some foreign nuclear facilities.  It caused part of the machines to start and stop very abruptly, eventually breaking each piece and rendering the facility worthless.  (very large and expensive pieces. Im not a nuclear physicist, I don't know what they were) it wasn't traceable once in the system, not even noticeable really.  It appeared to be just faulty machinery.
Anyways, I have no proof to support it, just word of mouth.  Its a neat little hackers bed time story.