Keyless entry systems in modern cars offer a high level of convenience, allowing drivers to unlock and start their vehicles without physically using a key. However, like any technology, keyless entry systems are not immune to security risks. One particular threat that has emerged is signal relay theft, a method used by criminals to bypass the security of keyless entry systems. In this article, we’ll explore whether keyless entry is safe and discuss how to prevent signal relay theft.
Is Keyless Entry Safe?
Keyless entry systems are generally safe and provide convenience and security. They use encrypted radio signals to communicate between the key fob and the car, making it harder for thieves to intercept the signals. However, the technology is not foolproof, and signal relay theft has become an emerging concern.
Signal relay theft occurs when criminals use a device to capture the signal from your key fob, even if it’s inside your home or pocket. They then relay the signal to your car, tricking it into thinking the key fob is nearby. This allows the thief to unlock and start your vehicle without ever touching the fob.
While the technology behind keyless entry is robust, signal relay theft has raised concerns about the system’s vulnerability, especially if a car is parked in an area prone to this type of attack.
Capturing the Signal: Thieves typically use a pair of relay devices to intercept the signal emitted by your key fob. One device is used near your home (where the fob is usually stored), and the second device is near your car.
Amplifying the Signal: The relay devices amplify the weak signal from your key fob and send it to the car, tricking it into thinking the fob is in close proximity.
Unlocking and Starting the Car: Once the car accepts the signal, it unlocks the doors and, in some cases, allows the car to be started and driven away.