Strangways wrote: ↑Thu Jan 31, 2019 8:21 am
HouseSpider wrote: ↑Thu Jan 31, 2019 7:31 am
It has been determined that the CX-3 is susceptible to this sort of hacking. But I have the following questions:
Pressing the key fob controls actuate the locking/unlocking over dstances of 100m+.
Using the keyless entry/locking requires the key fob to be within approximately a meter of the vehicle (so the range is minimal).
At what distance does the hacking equipment have to be from the key fob to effectively clone the keyless entry signal?
Now if people keep their keys right next to the front door I can see that it would be easy to clone the signal. However if, like myself, my keys are hung in the middle of the house with a couple of internal walls between them and the front door, what are the chances of the clonng working?
The walkaway locking setting is in the car not the key. Therefore they can hack a key that is up to 100 metres away from their equipment.
I read that on an American web site.
That still doesn't seem to make sense in my mind. A similar example is that the starter motor is in the car and not the key but requires the presence of the key to be able to actuate it, i.e. the code emitted from the fob. This only happens when the key is in close proximity to the starter button. You can't unlock the door from 5m away let alone 100m unless you press the buttons.
With the door locking I would have thought that the car automatically locks unless in the presence of the key fob within the car detection zone.
So how do they hack a key from 100 meters if the signal generated by that key is only detectable within a meter?
The video posted on line of the hacking of the merc shows the criminals getting as close to the front door as possible and relaying the signal between two pieces of equipment. This seems like further evidence that they have to be fairly close to the key to pick up the signal.
The system might be similar to the RFID in contactless payment cards except the key fob generates the signal using power from the battery. Card skimmers only work in close proximity to the cards.
It would be interesting to test the following:
What happens if, when in the car, the key fob is placed within a working farady pouch? Does the the car beep to notify you of the non-presence of a key?
What happens if you unlock & open the door, put the key in the farady pouch, place it in the car and walk away? Does the car automatically lock? (if you try this make sure you've got the sparer key handy).
Apologies for going on and on and rambling but there seem to be alot of unanswered questions as to what is possible and what is not.
Sports Nav Auto Petrol 2017, 131bhp (chipped), Soul Red, Half Stone Leather, Safety Pack, Arm Rest, Auto Folding Mirror Kit, Detachable Tow Bar, HatchBag Boot Liner, Stebel Nautilus Compact horn. Space saver.