Then how soon till EADS "procures" this data and ends up in their military fighters.
Soon.
That's the price you pay for selling your technology abroad.
If you want to make the money, then you have to accept that other people are going to exploit what you made and copy it.
If you want the military monopoly on that equipment, then you can't sell it to anybody.
The British aren't going to let the third option, preferred by the US: pay the money but not get the exploitable information, because that leaves the British military subject to an American veto, and that will never fly.
Better to have good planes bought in France that are yours than great planes bought in America that have an American power of veto over them.
I can't predict how this will come out, other than to say that the British are not going to buy the planes without the codes. So, it will either be Rafales (or perhaps Typhoons) and the Americans keep their codes and planes and don't get the cash...or it will be the American planes, and the Americans will fork over the codes.
I suppose a third option is for the Americans to embed a deeper level of coding into the equipment, and give the surface codes but not something buried deeper. Of course that's the sort of thing you can use once, and then nobody buys your stuff ever again. And you have to keep 100% secrecy forever on it.