What anti theft device does a 2012 Acura MDX use?

Factory anti-theft functionality consists of an immobilizer system requiring a programmed key to correspond with the vehicle in orders to crank over the starter and start the vehicle. Additionally, perimeter anti-theft exists in that if you open the door without the key present or key fob unlocking the doors, the horn will sound. There is no impact detection or glass breakage sensing, but if someone is getting into the car without a key, the horn will go off, and without a programmed key the vehicle will not start.