According to Popular Mechanics, while the aircraft itself is pretty secure, much of the F-35's strength lies in its ability to connect to the wider military and harness big data about the mission.

Every F-35 squadron, no matter the country, has a 13-server ALIS package that is connected to the worldwide ALIS network. Individual jets send logistical data back to their nation's Central Point of Entry, which then passes it on to Lockheed's central server hub in Fort Worth, Texas.

ALIS sends back so much data that some countries are worried it could give away too much information about their F-35 operations.

Another networking system is the Joint Reprogramming Enterprise, or JRE. The JRE maintains a shared library of potential adversary sensors and weapon systems that are distributed to the worldwide F-35 fleet.

For example, the JRE will seek out and share information on enemy radar and electronic warfare signals so that individual air forces will not have to track down the data themselves.

This allows countries with the F-35 to tailor the mission around predicted threats -- and fly one step ahead of them.

The networks have serious cybersecurity protections; they will undoubtedly be targets for hackers in times of peace, and war.

Hackers might try to bring down the networks entirely, snarling the worldwide logistics system and even endangering the ability of individual aircraft to get much-needed spare parts.

Alternately, it might be possible to compromise the integrity of the ALIS data -- by, say, reporting a worldwide shortage of F-35 engines. Hackers could introduce bad data in the JRE that could compromise the safety of a mission, shortening the range of a weapon system so that a pilot thinks she is safely outside the engagement zone when she is most certainly not.

Even the F-35 simulators that train pilots could leak data to an adversary. Flight simulators are programmed to mirror flying a real aircraft as much as possible, so data retrieved from a simulator will closely follow the data from a real F-35.