Keyless car entry systems offer convenience, but they also present a security vulnerability exploited by thieves using Keyless Car Key Scanners. This article explores how these scanners work, the risks they pose, and effective prevention measures.
How Keyless Car Key Scanners Work in Relay Theft
Relay theft, also known as relay attack, employs two devices to capture and relay the signal from your key fob. One device, held near your home, captures the key fob’s signal. This signal is then transmitted to a second device near your car, tricking the vehicle into thinking the key is present. This allows thieves to unlock and start your car without physical possession of the key. The entire process can take as little as 20-30 seconds. Keyless entry cars, those that unlock and start with the key fob in the driver’s pocket or bag, are particularly vulnerable.
Protecting Your Car from Keyless Car Key Scanner Attacks
Several effective methods can significantly reduce your risk of becoming a victim of relay theft:
1. Signal Blocking Pouches (Faraday Bags)
A signal blocking pouch, also known as a Faraday bag, is lined with metallic material that blocks radio waves, preventing your key fob’s signal from being intercepted. These pouches are inexpensive, starting from around £5, and can also block Wi-Fi and Bluetooth signals from mobile phones.
2. Deactivate Keyless Entry
Consult your car’s manual or contact the manufacturer to determine if your key fob’s wireless signal can be turned off. Disabling the signal when not in use eliminates the risk of it being intercepted.
3. Physical Security Measures
Traditional security measures like steering wheel locks and car alarms remain effective deterrents against keyless car theft. These devices can slow down or discourage thieves equipped with electronic tools.
4. Strategic Parking
Parking in a garage significantly increases the distance between your key fob and potential thieves, reducing the effectiveness of keyless car key scanners. If a garage isn’t available, park in well-lit areas and as close to your property as possible.
5. VIN Etching
Etching your Vehicle Identification Number (VIN) onto your car’s windows, headlights, and mirrors makes it more difficult for thieves to resell a stolen vehicle, potentially deterring theft.
6. Vehicle Tidiness
Keeping your car’s interior clutter-free and hiding valuable items removes visual incentives for thieves. An empty glove compartment, left open, can also signal that there’s nothing of value inside.
7. Lost Key Replacement and Reprogramming
If you lose your car keys, contact a qualified auto locksmith to replace them and reprogram your car’s system. This ensures that any stolen or lost keys can no longer be used to access your vehicle.
Car Models Vulnerable to Keyless Car Key Scanner Attacks
Any car with keyless entry is potentially vulnerable. Popular models like the Ford Fiesta, Volkswagen Golf, Nissan Qashqai, and Ford Focus have been identified as being at risk. Organizations like Thatcham Research conduct security tests and provide ratings for keyless entry car models, offering valuable information to consumers.
Conclusion
While keyless car entry systems offer convenience, it’s crucial to be aware of the security risks they present. By understanding how keyless car key scanners work and implementing effective prevention measures, you can significantly reduce your risk of becoming a victim of relay theft. Staying informed about car security ratings and manufacturer updates can also help you make informed decisions about protecting your vehicle.
