patrick.net

http://mobile.theverge.com/2013/4/11/4213452/hugo-teso-full-airplane-flight-control-using-android-app

Teso demonstrated how using a custom application on his Samsung Galaxy, he was able to exploit certain systems in a plane's electronics. This gave him full control over navigation, as long as the plane remained in autopilot, and limited control over lesser functions such as cockpit lights. If the aircraft's pilots did not eventually engage manual controls, a hacker could accomplish any number of malicious actions, such as crashing one aircraft into another. Teso accomplished the hack by using his phone to send radio signal instructions to the plane's systems. The plane's systems followed his instructions because they lack security...