With the increase in internet connectivity in cars, planes, and trains, the question has been raised now and then about how “hackable” these systems are now that they are connected to the internet at large. There have been a couple of stories in the media, including someone that had claimed to have hacked into a commercial airplane through the on-board wi-fi, and a story in Wired where a Jeep was hacked remotely through its internet connectivity features and full control of many of the car’s systems were taken over by the hackers. Both stories raise concerns over how secure the…