Keyless technology has transformed the driving experience — especially for those using flexible vehicle subscriptions. But as cars have become more advanced, so have the tactics used by thieves. Electronic theft, often called key hacking, is now one of the most common ways criminals target modern vehicles in the UK.
Whether you’re comparing subscription providers or already enjoying the convenience of a monthly car subscription, understanding these risks is essential. Protecting the vehicle can help you avoid unwanted charges, downtime, or insurance complications.
Below, we explore the three most common key-hacking methods and how you can reduce the risk.
1. Key Jamming (Signal Blocking)
This method is commonly used in public places such as shopping centres, petrol stations, and retail parks — exactly the kinds of locations where you may briefly leave a subscription vehicle unattended.
Criminals use a device that blocks the signal between your key fob and the car. When you press the lock button, the vehicle doesn’t receive the command, leaving it unlocked even though you think it is secure.
Once inside, thieves can attempt to use the onboard diagnostic (OBD) port to override security systems and potentially start the car.
How to protect against key jamming:
Always confirm the vehicle is locked — wait for indicator flashes, folding mirrors, or physically check a door handle.
Ask your subscription provider whether the vehicle includes an OBD port lock or additional protection.
Be particularly cautious in busy car parks, where criminals often operate.
2. Relay Theft (Targeting Keyless Entry Vehicles)
Many subscription cars feature keyless entry, which unfortunately makes them a prime target for relay theft. This type of electronic theft usually involves two criminals working together.
One uses a device to pick up the signal from your key — sometimes through walls or from inside your home — while the second uses a receiver near the vehicle. The car detects the relayed signal, unlocks, and can be driven away with ease.
This method is especially common outside residential properties but can also occur in public car parks.
How to protect against relay theft:
Disable keyless entry in the vehicle’s settings if you prefer not to use it.
Store the key in a Faraday pouch (RF-blocking) to prevent the signal from being captured.
Keep keys away from doors, windows, and hallways.
Ensure any spare keys are protected too.
3. Wiring Attacks (Bypassing the Key System)
Some thieves attempt to access a car by manipulating the wiring — often via headlights, wheel arches, or external panels. With the right equipment, they can disable security systems or unlock the car without ever touching the key.
This type of attack is more common with high-value models frequently offered through subscription services.
How to reduce this risk:
Use a visible steering wheel lock, which acts as a strong deterrent and slows down attempts dramatically.
Park in well-lit, secure areas whenever possible.
For premium subscription vehicles, consider extra security, such as tracking systems, if permitted by your provider.
Why Key-Hacking Prevention Matters for Subscription Users
Taking care of a subscription vehicle is not just about avoiding theft — it can also help protect you from potential fees or complications:
Providers may charge for negligence if a theft occurs due to avoidable security lapses.
Stolen subscription vehicles may disrupt your ability to stay mobile while a replacement is arranged.
Additional security measures can give you peace of mind when swapping or returning vehicles.
Simple, everyday precautions can go a long way in keeping your subscription car safe and ensuring a smooth, stress-free experience.
