Car theft from private driveways accounts for a significant proportion of UK vehicle crime, with keyless relay attacks allowing thieves to start modern cars without the physical key by amplifying its signal from inside the house. Understanding the methods thieves use and the countermeasures available helps homeowners protect their vehicles effectively.

Keyless Entry Relay Attacks

Modern cars with keyless entry and start systems emit a low-power radio signal that the car detects to unlock and start without physically pressing a button on the key fob. Thieves use relay amplifier devices, typically operated by two people, to extend the range of the key's signal from inside the house to the car on the driveway. This tricks the car into thinking the key is present, allowing it to be unlocked and driven away in seconds. This type of theft is silent, fast, and leaves no obvious evidence of forced entry.

Faraday Pouches

Storing your car key in a faraday pouch or faraday box blocks the key's radio signal, preventing relay attackers from amplifying it. Faraday pouches are available from security and automotive suppliers for a few pounds. Test the pouch is working by placing your key inside and checking that the car does not respond when you approach it; if the car unlocks, the pouch is not providing adequate shielding. Metal tins, including old biscuit tins, can also block the signal effectively as a low-cost alternative.

Physical Barriers and Driveway Security

Physical deterrents make the act of stealing a vehicle take longer and more visible, deterring opportunistic theft and slowing professional thieves. A steering wheel lock fitted to the car is one of the most effective deterrents because it prevents the car from being driven away even if the electronic systems are compromised. Wheel clamps provide a similar physical deterrent. A driveway post or bollard, even a retractable one, requires the thief to remove it before driving the car off the drive, adding time and noise to the theft attempt.

Driveway Alarms and CCTV

A driveway alarm that triggers when anyone approaches the car area provides an audible deterrent and alerts the homeowner to a potential theft in progress. Video doorbell cameras and driveway CCTV provide evidence for insurance and police investigation. Visible CCTV cameras act as a deterrent; signage indicating CCTV is in use reinforces this. While not preventing theft, CCTV footage aids prosecution and recovery.

Insurance and Tracking

Fitting a GPS tracker to the vehicle significantly increases the chance of recovery if the car is stolen. Many insurers offer a premium reduction for vehicles with approved tracking devices fitted by an accredited installer. Tracking devices can be hidden in locations difficult for thieves to find and remove.

Summary

Protect a car on the driveway from keyless relay theft using a faraday pouch for the key and a visible physical deterrent such as a steering wheel lock. A driveway post or bollard prevents quick drive-away. CCTV deters opportunistic thieves and provides evidence. Parking in a locked garage is the most effective protection. A GPS tracker aids recovery if theft does occur.