"Instead of jamming radar signals, Suter uses a more sophisticated approach of "hacking" into enemy defences.
"The technology allows users to invade communications networks, see
what enemy sensors see, and even take over as systems administrator so
sensors can be manipulated into positions so that approaching aircraft
can't be seen," Aviation Week explains. "The process involves locating
enemy emitters with great precision and then directing data streams
into them that can include false targets and misleading message
algorithms."
Article Link: http://www.theregister.co.uk/2007/10/04/radar_hack_raid/