The Welgemoed City Improvement District (CID) is urging residents to be aware of relay theft, a sophisticated vehicle crime that targets cars fitted with passive keyless, or “smart key”, entry systems.

The warning follows previous advice from the CID on remote jamming, with officials stressing that the two crimes are often confused but are carried out in very different ways.

Unlike remote jamming, which prevents motorists from locking their vehicles in public parking areas, relay theft usually happens outside homes. Criminals use electronic devices to extend the signal between a vehicle and its smart key, convincing the vehicle that the authorised key is nearby.

How relay theft works

According to the South African Insurance Crime Bureau (SAICB), relay attacks are becoming an increasingly common method used by organised vehicle theft syndicates.

The CID said the crime is typically carried out by two suspects. One stands close to where the vehicle owner keeps or carries the smart key, while the other waits near the vehicle. Using specialised equipment, they relay the key’s signal, allowing the vehicle to unlock and, in many cases, start without any visible signs of forced entry.

“What makes relay theft particularly deceptive is that the owner’s keys never leave their possession,” the CID said in a statement.

How motorists can protect themselves

Drivers with vehicles fitted with passive keyless entry are encouraged to take steps to reduce the risk.

The CID recommends storing smart keys away from front doors and windows where the signal is less likely to be intercepted. Motorists should also consider using a Faraday pouch, which blocks the key’s radio signal and prevents criminals from extending its range.

Where possible, drivers are advised to disable the passive keyless entry function when it is not needed and to follow the security recommendations provided by their vehicle manufacturer.

The CID also urged residents to remain vigilant and report suspicious activity around parked vehicles.

Anyone who believes their vehicle has been targeted should report the incident to SAPS and notify the Welgemoed CID Control Room on 086 1212 315. The CID said prompt reporting helps build operational intelligence and may assist future investigations.

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