If you find an USB in a wall or on ground DON'T TOUCH IT and destroy it or call police.
We are all wondering what's in USB and we want to use it but a situation that happened in Holland showing us we must keep to them away.
At an park in Holland someone found an usb. Usb which found it was opened and looked into what's in it by name of DSM Chemical Company and they were shocked.
It was filled up completely with trojan by some hackers.
If it's used in critical department of that company, hackers could be have many critical information about that company.