Impact Of Technology:


Even though we have increased security features to keep our cars safe from thieves using Technology, they one step ahead of us and steal our cars using the same Technology.
               Thus the number of thefts has also increased. This type of car Theft that we are going to see now is a small example of that.
               This type of car theft has been on the rise around the world for the past few years. In fact, this type of car theft is the reason why millions of cars have been stolen worldwide in the last one year.
               Ok, now let's see what Science these thieves are using to steal the cars and what kind of cars are all affected by this theft and what kind of Science we can use to thwart this theft.
               Before that, I think this awareness should be for everyone then only our car and the car of the friends around us can be saved from this kind of theft.

How does this theft happen?

              The key is essential to us even if the car door opened 15 - 20 years ago, and the car needs to be started.
               But as Technology grew, the Remote Control keys began to grow. These remote control keys are not only for fancy but also for the car driver's safety and to prevent car theft.

Remote Control Keys:

                  This type of Remote Control Keys has a lock and unlock buttons for opening and closing the door. This type of keys works well up to a few metres away from the car.
                  But what is important is that the key is to start the car's Engine even if we use the Remote Control Keys to close and open the car's door.

Disadvantage:
There are a few disadvantages to locking and unlocking a car door with a remote control key and starting the Engine with the car key. Disadvantages are,
                  When we have a lot of things in our hands to keep in our car's trunk, we have to put the items down first, then take the remote control key and unlock it, and then we can put the items inside.
                And there is a chance that someone will steal our car key and then duplicate it to steal the car.
                Also a few times the car key is bent then we can't start our car's Engine.
          Nowadays, car Keys are now being developed has undergone some changes to fix these kinds of problems.
          With these new keys, we do not have to press the lock and unlock buttons to open or close the car door every time. So, if we keep this car key in our pockets and go to the side of the door, the car door will automatically be unlocked.


 When you get into the car with the key and go inside, there will be a Start Button to press, then the car's Engine will start working. Suppose that we get into the car and press the Start Button without that car key, and the vehicle will not start.
               These new types of keys are we called as Passive Keyless Entry And Start System or Smart Key.

Smart Key:

The working principle of this smart key is different for every car and every model. Let's take a specific type of smart key and see what its working principle is.


                The car continuously transmits low-frequency signals.  Whenever the smart key gets near the vehicle, it receives the low-frequency signal sent by the car and instead generates an identification code and sends the code to the car as an ultra-high frequency signal source.

 

       The car that receives the signal will check if the identification code sent by the Smart Key is correct or not and will unlock the car if it is accurate. Then we take this smart key into the car and press the Start Button, and the vehicle will start.

                The identification code sent by the Smart Key is can change and sends different codes for each and every time. The car will accept the new different codes sent by the smart key. And this process is called Rolling Codes.

Rolling codes:

                Why are these keys are always designed to generate Rolling Codes because,


           Suppose if we made sure that the key always sent the same type of identification code, and now if a hacker finds the identification code, the car can be easily stolen. So only the Smart Keys are always designed to generate Rolling Codes.


                Ok, now we will say this Smart Key system is well thought out designed securely. So we may think that it is not possible to steal cars.

Yet we may suspect how thieves steal car,
            Sometimes we think terribly when designing a product, but hackers hack using a straightforward trick to steal the cars.

For example, we can see the method used by car thieves who do not break the Identification codes sent by the keys or hack the Rolling Codes sent by it.
Instead, they use a little trick. That trick is, Amplifying the signal sent by the car.
If to make this more simply,

                Now, a person can't speak too loudly, and another person is too far away from 1st person.

Now 1st person's voice can't hear by 2nd person because of the distance between them.

If the 1st person's voice is to be heard by the 2nd person, then we put an amplifier between them, and that 2nd person will listen to 1st person speak.

Using a similar simple technique, they carry out this theft. And this technique is called Signal Amplification Relay Attack or Relay Theft.

Relay Theft:

To say this in more detail,

               We give a device to a person and put him on the side of the car, let assume this device is device 1; also, we put another person near to the key that placed in that house with another device on his hand and takes it device 2.

                Now, device 1 will receive the low-frequency signal from the car and upconvert it to a 2.5 GHz signal and send it to device 2. To put it more simply, it converts the signal of the weekend into a strong signal and sends it over a long distance.

  


              Now this device 2 will down convert the signal from the device 1. That is, device 2 down convert 2.5 GHz signal into 130 KHz signal like that actually it is low frequency signal that car generates and send it to the Smart key.

 

     Now, this Smart key will mistakenly think that it is a signal sent by the car and send the Rolling code directly to the car; then, the vehicle mistakenly senses that the key is near the car, so the car wants to unlock.

 Then the car will be automatically unlocked, and then we can get in the car, press the Start button, start the vehicle, and take it ourselves.

                The total cost of making these devices used to steal this car is approximately $15 only. Made using just $15, but using this device can steal cars worth millions.

Ok, now would we have to spend so much money to prevent this kind of theft?

There is no need to spend a lot of money to prevent cars. You need to spend around $1 to prevent your vehicle. Let see how it can make possible.

Faraday cage:

As we have seen in the video, a person is inside the cage made by a conductor so that when a High voltage current is applied to the cage, the person in the cage is not harmed. Similarly, when we travel in a Lift or an Elevator, the mobile signal is not available properly. Because,
                The reason for this is that the conductor's cage is appropriately not allowing an Electric Signal or an Electromagnetic Wave inside. We also call this a Faraday cage. We will see the Science of this Faraday cage another day.

                This simple Faraday technique is used to fix the car theft problem. If that's how it is, we take a smart key and cover it using Aluminium foil, and then the Foil acts as a Faraday cage so the signals can't be reserved and can't come outside, then we can completely avoid this Relay Theft.
                If you do not want to use Aluminium foil, you can buy a small Faraday cage sold in the market and keep the smart key inside.
                
Some people who have seen this post in its entirety may ask that a lot of people are likely to steal after seeing this post. But the whole point of this post is that awareness of this issue. So, share this post with a lot of people so that this awareness will go to everyone.

THANK YOU...