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Understand How Criminals Use the “Relay Attack” to Clone Keys at a Distance and Discover Simple Measures to Protect Your Car Against This Modern Threat.
The technological advances of modern cars have brought more comfort and security to drivers, but they have also opened gaps for new types of crimes. Among the techniques most used by criminals today is the “relay attack”. This method allows car theft in a matter of seconds, without the thieves even needing to touch the vehicle’s key. Want to understand how this technique works and, more importantly, how to protect yourself against key cloning? Then stay tuned!
What Is the “Relay Attack”?
The “relay attack”, or relay attack, is a sophisticated form of car theft that takes advantage of proximity key technology. These keys emit radio signals that communicate with the car, allowing it to be unlocked and started without the need to insert them into the ignition. This convenience, however, is also the system’s weak point. The crime typically involves two criminals and cheap devices, easily found on the internet. It works like this:
- The first criminal uses a device to capture the key’s signal, even if it is in a pocket or inside a house;
- This signal is retransmitted to a second device, in the possession of an accomplice, who is nearby the car;
- With the captured signal, the car “thinks” the key is close and allows the criminal to unlock and start it.
All this happens in a matter of seconds, making car theft incredibly quick and discreet.
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How to Protect Your Car Against Key Cloning?
If you have a modern car with a proximity key, there’s no need to panic. There are effective ways to prevent your key from being cloned. Check out some essential tips:
Signal Blocking Case
Experts recommend using specific cases that block the radio signal emitted by the key. These cases, known as “Faraday bags”, create a barrier that prevents criminals from capturing the key’s signal.
A Simple and Cheap Alternative
If you don’t want to spend on a blocking case, aluminum foil is an improvised solution. Just wrap the key in several layers to block the signal. Although not as efficient as specific cases, it can be a temporary measure.
Tracking Systems
Having a tracker installed in the vehicle is always a good idea, but remember: more experienced criminals use devices that jam tracking signals. Therefore, the tracker is an extra layer of security, but it’s not infallible.
Variable Code Generators
Some models of modern keys already have systems that generate new codes with each use. This feature makes key cloning more difficult but does not eliminate the risk entirely. Always check if your car has this technology.
Everyday Care
In addition to devices and security systems, some attitudes in everyday life can help protect your vehicle:
- Keep the key away from the entrance door or windows. This makes it difficult for criminals to get close enough to capture the signal;
- Disable the proximity key system when not in use. Many cars allow you to turn off this function in the settings menu;
- Park in safe and busy places. Thieves prefer to act in isolated locations.
What to Do If Your Car Is Stolen?
If, despite all precautions, the worst happens, take the following measures immediately:
- Notify the police. File a report as soon as you notice the theft;
- Notify your insurance company. Inform them of the incident to initiate the claim process;
- Monitor trackers. If your car has a tracker installed, activate the system to try to locate the vehicle.
The technology of modern cars has brought a new era of convenience but also presents security challenges. Understanding how the relay attack works and adopting preventive measures are essential steps to protect your car against key cloning.
Therefore, do not underestimate the creativity of criminals. Always stay alert, invest in security, and share these tips with friends and family. The more people are informed, the harder it will be for thieves to act. After all, prevention is always better than remedy!
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