Understanding Key Fob Cloning and Vehicle Security

Keyless car theft is becoming more common, with criminals using advanced technology to steal vehicles in seconds. Thieves cloning car keys no longer need to break windows or force locks, many can access and drive away with a car without leaving a trace. If you own a vehicle with keyless entry, understanding how these attacks happen and what you can do to prevent them is essential.

Car key cloning theft allows criminals to copy key fob signals and use them to unlock and start a vehicle. This method is quick, silent, and often leaves no visible signs of forced entry. Taking the right precautions can make all the difference in keeping your vehicle safe.

What is Key Fob Cloning?

Key fob cloning is the process of copying a car’s keyless entry signal to create an unauthorised duplicate. Criminals use relay devices, RFID scanners, or hacking tools to capture the signal and trick the vehicle into unlocking. Once cloned, the duplicate key can be used to access the car and, in many cases, even start the engine.

Thieves target vehicles with keyless entry because it allows them to steal a car without needing the physical key. Since no windows are broken or locks forced, many car owners don’t realise their vehicle is vulnerable until it’s too late. Without additional security measures, a cloned key fob can provide a thief with full access in seconds.

Some key fobs have rolling codes or encryption that make cloning more difficult, but not all models are protected. Older vehicles and even some newer ones still use systems that can be intercepted. Taking proactive steps to prevent car key cloning is essential for keeping your vehicle secure.

How Do Thieves Clone Car Keys?

Criminals use relay attacks, RFID skimming, and hacking to clone car key fobs without the owner realising it. These methods allow thieves to gain access to a vehicle quickly and without causing any visible damage. Since no physical break-in occurs and the car key cloning distance is quite far, many victims only discover their car is missing when it is too late.

In a relay attack, two thieves work together using a device that extends the signal from a key fob. One criminal stands near the key, often inside a home, while the other waits by the vehicle with a receiver. The signal is relayed to the car, tricking it into unlocking and allowing the thief to drive away.

One of the most effective ways to stop relay attacks is by installing Ghost Immobilisers. This advanced security system prevents the engine from starting unless a unique PIN code is entered, making it impossible for thieves to drive off even if they have cloned the key. Taking extra security steps like this can significantly reduce the risk of car key cloning theft.

Common Key Cloning Methods

Thieves use several methods to clone key fobs, with some techniques being more advanced than others. While some require specialised equipment, others take advantage of loopholes in everyday key duplication services. Understanding how these methods work can help you take the right precautions to protect your vehicle.

Using a Kiosk or Online Service

Some criminals exploit legal key duplication services to create unauthorised copies of key fobs when cloning car keys. Certain self-service kiosks or online retailers allow users to order spare key fobs, sometimes with minimal security checks. If a thief gains access to your key’s serial number, they can request a duplicate without your knowledge.

It’s not just tech-savvy criminals using these methods. Dishonest valets, mechanics, or rental agents may clone a key while it’s in their possession. To prevent this, always keep your key secure and never leave it with anyone you don’t trust.

Using an RFID Copier

RFID copiers are small devices that scan and store key fob signals within seconds. These tools are widely available online and allow criminals to duplicate car keys with minimal effort. Once copied, the stored signal can be transmitted to a duplicate fob, giving thieves full access.

Some RFID copiers can capture signals through walls and windows, making key fobs vulnerable even inside homes. How far away can a car key be cloned? In some cases, it can be over 100 meters using advanced relay boosters.

Without the right security precautions, your key signal is at risk even when stored indoors. Keeping your key in a secure location and using signal-blocking devices can prevent criminals from intercepting and copying its signal. Taking these steps can make a significant difference in protecting car keys from cloning.

Preventative Measures Against Key Fob Cloning

Taking proactive steps can make it much harder for thieves to clone car keys. Small changes in how you store and protect your key fob can significantly reduce the risk of theft. These simple but effective security measures provide an added layer of protection for your vehicle.

Storing Keys Securely

Where you keep your key fob plays a crucial role in protecting your car from theft. Storing it near doors or windows increases the risk of relay attacks, as thieves often scan for signals from outside. Keeping your key in a secure location, away from entry points, reduces the chances of cloning.

One of the best ways to improve car key cloning prevention is by using a Faraday pouch or box. These signal-blocking devices create a shield that prevents RFID scanners from intercepting key fob signals. Avoid leaving spare key fobs inside your car, as thieves can gain access and program a new key.

Using Signal-blocking Devices

Signal-blocking devices are an effective way to prevent relay attacks and RFID skimming. A Faraday pouch or Faraday box blocks the key fob’s signal, preventing it from being intercepted by thieves. Some vehicles also allow the keyless entry feature to be disabled when not in use, reducing the risk of cloning, other security measures that can help protect your vehicle include:

• Using a steering wheel lock to create a physical barrier against theft.
• Parking in a locked garage or well-lit area to deter criminals.
• Turning off the key fob signal when not in use, if your car allows this feature.

Installing Additional Security Systems

Even if a thief clones your key, additional security features can prevent them from driving away. A Ghost Immobiliser prevents the engine from starting unless a unique PIN code is entered, making it one of the most effective theft prevention tools. This ensures that even with a cloned key, the thief cannot start the car without the correct security sequence.

A car alarm can deter thieves by detecting unusual activity, such as tampering or forced entry attempts. If your car does get stolen, a vehicle tracking system can help authorities locate and recover it more quickly. Installing these security measures adds extra layers of protection against car key cloning theft.

Steps to Take if Your Vehicle is Stolen

If your car is stolen, acting quickly can increase the chances of recovery. The first few hours are crucial, as stolen vehicles are often moved to new locations or stripped for parts. Taking immediate action can help authorities track and locate your vehicle before it disappears, follow these steps as soon as you realise your car is missing:

• Call the police and report the theft with your vehicle’s make, model, and registration.
• Contact your insurance provider to start a claim and provide them with all necessary details.
• Check vehicle tracking apps if your car has GPS installed, as this may help locate it.

If you suspect your car key was cloned, notify your car manufacturer as soon as possible. Some manufacturers can remotely disable a cloned key, preventing thieves from using it again. Acting fast not only improves the chances of recovering your car but also helps prevent further security risks.

FAQs

How to avoid car keys being cloned?

To prevent car key cloning, store your key in a Faraday pouch or box to block its signal. Installing added security measures, such as a Ghost Immobiliser, adds another layer of protection. Disabling keyless entry when not in use can also reduce the risk of thieves intercepting and cloning your key.

Is there a box to stop car keys from being cloned?

Yes, a Faraday box is designed to block key fob signals and prevent cloning attempts. These boxes use signal-blocking materials to stop thieves from intercepting your key’s transmission. Using one is a simple and cost-effective way to protect your car from keyless entry theft.