Airbus A400M Atlas four-engine turboprop military transport aircraft (image: Airbus)

Hackers seeking data on Airbus Engines for the A400M and A350 aircraft have intruded Airbus’s computer networks via some of its subcontractors.

An AFP report quoting unnamed security sources suggests that the industrial espionage activity is controlled from China. A Chinese government spokesperson denied the accusation yesterday stating, "China is a strong defender of network security and opposes any form of cyber-attack," Foreign Ministry spokesman Geng Shuang told reporters in Beijing yesterday.

The intrusions into Airbus’ network systems were through the French technology consulting group Expleo, engine manufacturer Rolls-Royce and some other unidentified subcontractors.

The hackers targeted the virtual private networks (VPNs) that connect the companies to Airbus. The VPN provides access to the subcontractor to certain systems of Airbus and intruding through the VPN allows the hacker to find an entry into the file systems of Airbus.

The hackers posed as the subcontractor seeking information about the engine products taking advantage of the subcontractor’s access to the Airbus network.

The first of the infections was detected in the British subsidiary of Expleo and Rolls Royce late last year. The attackers targeted technical certification documents, which provide information on various aspects of the aircraft meet regulatory requirements, LATribune reported quoting AFP.

Some data stolen related to the engine of the A400M military transport aircraft, which has some of the most powerful turboprop engines in the world, the engine of the A350 widebody jet and aircraft avionics.