Entertainment system pen testing
It's not like he was pen testing the flight control systems, this is the equivalent of sticking a USB stick in a cheap car radio and worrying about it affecting the spark plugs.
Was it not up until recently that some major airlines were still using Windows 3.1 for their in flight entertainment systems? Would you think Windows 3.1 would be used to run the flight control systems?
Nearly every United transatlantic flight I've been on has had a defective in flight entertainment system, it has never affected the safety of the flight control systems. Just means I need to bring a long book.
AC because I'm expecting to be shot down by those in the industry who know what they're talking about.