“A company called Aerial Assault has turned a quadcopter into a flying hacker that scans the world below for insecure devices and vulnerable Wifi ports. Its makers say they built the tool for penetration testing — to help ‘good guys’ diagnose their own weaknesses — but they concede that with a bit of modification, it could be used to exploit those vulnerabilities and install malware from the air.”
Source: Someone At DEF CON Made a Drone That Hacks Computers – Defense One