As far as i know, i have never heard Punto/Linea stolen, Yeah they can open the doors with the Master Key, and take valuable things from the car as well as from the boot. But can never start the Car, As i know each and every time you start your car, the code gets changed.... You can get the Autocop security done but it is only used to open and close the door locks thats it. The keys made by FIAT will never wear inspite of using it more often, due to its design. I know my cousin having city his key has been worned out as its a simple key, now its extimated 12K for the Assembly. We are driving a FIAT.... so relax and enzoi the drive.