They are called "Ghost Keys" — digital replicas of your vehicle's security handshake, captured from your driveway without a single alarm trigger. This isn't theft by force; it's theft by cloning.
The 12-Second Heist
Observation data from recent Kempton Park incidents reveals a consistent "Relay Window." From the moment a thief approaches your front door to the moment your vehicle engine starts, the average time is just 12 to 18 seconds.
Syndicate Protocols
Packet Sniffing
Using a high-gain software-defined radio (SDR), the entry-team "pings" your vehicle to trigger an authorization request.
The Long-Range Relay
Your key fob, sitting on a kitchen counter or in a drawer, hears the ping and responds. The relay device grabs this encrypted packet and beams it to the partner at your door.
Authorization Masquerade
The car receives its own valid signal back within the required millisecond response time. The immobilizer disarms. The heist is complete.
Counter-Measures: Hardlining Your Defense
In the digital war for your vehicle, passive measures are insufficient. At Foxlock, we specialized in "Anti-Relay" hardening. There are three tiers of protection that every high-end vehicle owner in Gauteng should implement immediately.
Triple-Shield Faraday Isolation
Don't rely on generic R100 pouches. Use multi-layer metallic fabric shells that are tested for 315MHz-900MHz attenuation.
Keyless-Entry Disable (KED)
We can re-program your vehicle's BCM to only allow entry via physical remote button clicks — the only 100% relay-proof setting.
Security Checklist for 2026:
- 1Place your keyless fob at least 15 meters away from exterior doors.
- 2Invest in a steering wheel lock — it remains the best visual deterrent for relay thieves.
- 3Check for "Software Updates" for your vehicle; some manufacturers are rolling out ultra-wideband (UWB) security patches.
- 4Consult a Foxlock specialist regarding "Ghost Immobilizers" which require a secondary PIN entry after signal authorization.
VEHICLE AT RISK?
If you suspect signal-boosting activity in your area, or if you recently purchased a high-risk vehicle model, our technicians can perform a RF Integrity Audit at your home today.
Established Gauteng Response Unit

