Years ago, I had a car with a sophisticated ignition lock system (not my choice, but not relevant to the story). It was somewhat finicky, and creating a new key

Years ago, I had a car with a sophisticated ignition lock system (not my choice, but not relevant to the story). It was somewhat finicky, and creating a new key was not easy. And of course no chance of starting it without proper key! That car ended up stolen right from under my nose (I was within 100 feet of it, indoors but would hear if the alarm turned on) and the only thing I found in there when I came back for it was the sophisticated security system. The thieves just ripped it out in no time and with no sound, and drove away. Since then I'm somewhat skeptical about how much protection such systems really provide.