He claimed! but now has denied the stories.
"he reportedly claimed that he had compromised the in-flight entertainment systems "approximately 15 to 20 times" between 2011 and 2014, but has since denied the story, which was nevertheless widely reported over the weekend."
http://www.computing.co.uk/ctg/news/...-of-boeing-737
Boeings response "A spokesperson for
Boeing, the manufacturer of the plane allegedly hacked, said that the in-flight entertainment system and flight and navigation systems are isolated from each other"
http://www.theguardian.com/technolog...sputed-experts