The headline really is "Hackers Can Take Over Your GPS". Unless your GPS receiver is hosting its own model of what the GPS constellation SHOULD be based on you

The headline really is "Hackers Can Take Over Your GPS". Unless your GPS receiver is hosting its own model of what the GPS constellation SHOULD be based on your location and the current time, and can beamsteer its antenna elements to null out the spoofing, you're wide open to having someone just spoof GPS with a low power transmitter. This is old, old, old news.