European Aviation Safety Agency European Aviation confirmed the concerns about the Airplane hacking. Hackers could easily infiltrate critical systems, European Aviation. European Aviation. Safety Agency director Patrick Ky revealed he has hired consultant, which is also a. commercial pilot, who was able to exploit vulnerabilities in the Aircraft Communications Addressing and Reporting System (ACARS) The consultant only needed 5 minutes to crack ACARS and some days to access to the aircraft control system on the ground. The ACARS system is used in aviation as a digital datalink system for the exchange of short messages between aircraft and ground stations.”]
Source: http://securityaffairs.co/wordpress/40975/hacking/easa-airplane-hacking.html