It's largely case by case because what you'll see a manufacturer do, if they're coordinating with a local law enforcement agency, is try to find out how a vehicle security system was overcome, what was used to do it, and then find out what could possibly be done to avoid that in the future.
It very much is case by case, and these crime groups are very sophisticated. They're using different methods all the time. However, there is a benefit to sharing some of that information amongst law enforcement agencies so that they can understand what to look for, and of course, sharing it with auto manufacturers so that they can figure out what happened and why the vehicle was stolen in the first place.