Smart keys need protection
The fact it that smart keys are vulnerable to attacks from theft. These hackers steal your key fob information allowing them access to your car, including starting the ignition and driving away with it! You need a key fob protector or else a thief can use a cheap signal amplifier off of Amazon to steal everything in your car, or in some cases steal the car itself!
A little more info
The Key Fob Guard from Silent Pocket, is a privacy and security case for your key fob or keyless entry fob. It is a single sleeve that blocks the wireless connection from your key fob to your car.