A Java program named PoisonTap has been widely described today. It will run on most computers, but is most scary when run on a single-board-computer like a Raspberry Pi Zero. This board is 2.6 inches x 1.2 inches, and is under a quarter inch thick. Needing only a common USB cable, it can be plugged into any other computer that has a USB port. It essentially takes over the large computer.It siphons all your information by siphoning any cookies on your machine, it creates a back door to allow any hackers into your computer, and exposes the internal router on your system. For your reading:https://goo.gl/X44Lyb
you can download it from: https://goo.gl/Mi162Q
and for good general background: https://goo.gl/5SyzWt
Once this Raspberry Pi has been plugged in to a computer, you likely won't see much, but it will remain infected until you completely clean the system.