Now you have to securely deliver those keys to the cameras and people have to keep them up to date. With smartphones it's a bit easier because that can just be pushed to the phone automatically but for news orgs and other professional outfits their camera's aren't internet connected. So then you have a weird mishmash of deciding if an out of date key is being used because it's been cracked/stolen or if the NBC stringer just didn't update their camera before heading to the event.