TL;DR: Secure keys out of sight and reach, lock the car and home, and check model-specific anti-theft advice. Victoria Police now explicitly describes electronic key cloning and reprogramming as well as physical key theft. A Faraday pouch addresses only a particular signal risk; a home sound alarm is not a vehicle immobiliser. Never confront a thief over keys.
How do relay attacks differ from other car theft?
A relay attack extends a keyless fob signal so that a vehicle can treat the fob as nearby. Physical key theft is different: the offender obtains the original key. Other electronic attacks can involve key cloning or reprogramming. Vulnerability depends on the make, model, year, security design and any updated protection.
Victoria Police’s current vehicle-theft guidance warns about electronic devices that can override security on some cars. A statement that modern cars cannot be driven away without their original key is therefore too broad. Ask the manufacturer or an appropriately qualified automotive locksmith about your specific vehicle.
| Pathway | What is being exploited | Relevant layer |
|---|---|---|
| Physical key theft | Access to a working original key or fob. | Keep keys out of sight and reach, secure entrances and never leave a spare in the vehicle. |
| Relay attack | A susceptible keyless signal. | Manufacturer guidance, supported keyless settings and a properly tested signal-blocking pouch or box. |
| Cloning or reprogramming | Vehicle electronics or key programming access. | Model-specific protection; police list measures such as suitable OBD-port and steering-wheel locks. |
| Tow-away or removal | Physical movement of the vehicle. | Secure parking and appropriate physical measures; key protection alone does not cover this. |
These are categories, not instructions for defeating a vehicle. A device advertised against one category should not be assumed to solve all of them. Avoid modifying electrical systems yourself or fitting equipment that compromises driving safety or authorised servicing.
What does the Australian evidence say about stolen keys?
Original keys remain an important security concern, but an older local statement should not become a current nationwide percentage. The NMVTRC material supplied to a Queensland parliamentary inquiry in July 2021 reflects that historical inquiry context. It does not establish that nearly all Australian car theft in 2026 requires a stolen original key.
Current advice from Queensland Police includes locking the vehicle, removing valuables, keeping keys secured out of view and not leaving spares in the car. Victoria Police additionally describes electronic attack methods. Both types of advice can be relevant to the same household; neither is a reason to ignore the other.
For a vehicle under an open roof, use the carport security checklist. For a connected garage, include its internal house door and remote in the garage security check. These entry routines support vehicle-specific protection; they do not replace it.
Where should you keep keys without increasing personal risk?
Keep working and spare keys out of view and reach from external doors, windows and letter openings. Never leave a spare in the vehicle. Choose a routine everyone in the household can follow, while keeping house exit keys accessible to occupants where needed for safe escape. Personal safety comes before the car.
Do not build a plan around resisting an intruder or hiding keys where someone may search occupied bedrooms. If confronted or in immediate danger, move to safety if you can and call 000. Do not struggle over property or pursue a vehicle. Police should handle a live theft or tracking information.
- Check what is visible from the front and rear windows, including handbags, key hooks and garage remotes.
- Store spare fobs separately from everyday bags and remove old keys you no longer use from circulation through a qualified provider.
- Check a signal-blocking pouch using the manufacturer’s safe test instructions; worn material or an open pouch may not isolate the fob.
- Ask whether your model supports disabling passive entry or another approved security setting, and understand the effect on normal use.
- Preserve quick escape from the home; security measures should not trap occupants or depend on finding a hidden key in an emergency.
What should you do if keys or a garage remote are stolen?
Treat a missing working key, fob or garage remote as an access issue as well as a lost item. Make a police report, then contact the relevant dealer, automotive locksmith, building manager or garage-door installer. The required reset depends on the device; buying a replacement key alone may leave the missing one usable.
| When | Do this | Do not do this |
|---|---|---|
| Danger or theft in progress | Move to safety and call 000. Give police vehicle/location details. | Confront, pursue or attempt recovery from tracking data yourself. |
| After a non-urgent theft | Report through your state police non-emergency channel; retain the report number. | Assume a missing remote is harmless because the car remains. |
| Before reusing access | Ask a qualified provider to disable missing fobs/remotes and check spare access. | Follow an unverified reset process that could leave doors unsecured. |
| Insurance and records | Contact your insurer, check approval before non-urgent paid work and keep receipts. | Assume every replacement, rekey or hire-car expense is covered. |
| Household follow-up | Check any house keys, addresses, documents and building credentials taken together. | Reset the car alone while leaving another stolen access device active. |
Keep the registration, VIN, make/model, a recent photo and any relevant serial numbers somewhere separate from the vehicle. A shared building may need to revoke a fob centrally. A garage-door installer can explain whether all remotes need re-pairing; confirm the missing one no longer operates the door.
A local driveway sound alarm may be an additional cue at a permitted approach, but it does not detect key cloning, immobilise a vehicle, send a remote alert or guarantee that keys remain safe. Repair the actual entrance weakness and obtain model-specific advice before spending on another sound device.
Frequently asked questions
Are relay attacks common in Australia?
This guide does not establish a national frequency for relay attacks. Current Victoria Police guidance discusses other electronic methods, including key cloning and reprogramming, while police also advise securing original keys. Check your own vehicle’s susceptibility with the manufacturer or a qualified provider instead of treating a historical overseas or local figure as a current Australian rate.
Can a modern car be stolen without its original key?
Some can. Victoria Police describes electronic methods that can bypass security on particular vehicles. The risk varies by model, year and protection. Securing the original fob remains useful, but it should sit alongside model-specific anti-theft measures, locked doors, safe parking and any manufacturer updates that apply.
Do I still need a Faraday pouch?
A suitable, closed and tested pouch can be relevant to susceptible keyless signals. It does not prevent theft of the fob itself, every electronic attack or a vehicle being physically removed. Check the vehicle manufacturer’s guidance, retest the pouch as it wears, and do not treat it as complete protection.
Where should I keep my car keys at home?
Keep them out of sight and reach from external openings, and never leave a spare in the vehicle. Choose a practical household routine that preserves safe escape. Do not plan to confront someone or protect property at personal risk; if an intruder is present, prioritise getting safe and contacting police.
Will a barking dog alarm protect my car?
It can only provide a local recorded sound after a successful motion trigger. It is not an immobiliser, tracker or key-cloning detector, and it does not send phone alerts. Use vehicle-specific security and secure entrances first; any local sound device needs suitable placement, power and testing, with no guaranteed prevention outcome.
Sources
- Victoria Police: immediate safety and home entry security
- Queensland Police: stolen vehicles and prevention
- NMVTRC answers to Queensland parliamentary committee, 14 July 2021
- Victoria Police, preventing motor vehicle theft: current electronic and key risks
For a household plan after an incident, read what to do after a break-in. For a limited budget, start with the under-$200 home security plan. Keep vehicle protection and home-entry choices distinct.
Product introduction
This introduction explains the product and intended setup. It does not measure sound level, sensing range, battery life or performance at your property. Check the current instructions and test the actual placement before use.