'The F-35 may not have a “kill switch” in the traditional sense, but the countries who bought it are locked into an irrevocable pact with Lockheed Martin and America. ALIS/ ODIN might not be able to turn off the F-35 remotely, but losing access to it can make it impossible to fly.

Only one country has escaped the F-35 software and logistics trap while still being able to fly the jet: Israel. The IDF’s contract for the jet allows it to operate its own software systems without ALIS/ ODIN and conduct its own maintenance.'

So apparently only Israel can operate these planes without their weird DRM.