I'm not certain, but I imagine removing the comms would mitigate the threat. First thing I did when I bought my new~ish GMC was remove the OnStar module from under the backseat. I'm sure there is still a 'blackbox' somewhere, but never found *ny indication it has WAN capabilities. Of course, I disabled XM too... not so much for paranoia's sake, I just needed an input for my media device.