Ghost immobiliser Portsmouth, relay protection and CAN bus security

Vehicle owners in Portsmouth face relay theft risk that requires a physical relay break independent of the CAN bus. LockCar provides hardwired relay immobiliser fitting across PO postcodes, Portsmouth, Havant, Waterlooville, Gosport, Fareham, as a standalone solution or to complement an existing or new Autowatch Ghost installation.

Vehicle theft risk in Portsmouth

Portsmouth and the Hampshire coastal area face vehicle theft risk via the M27 and A3(M) connecting the area to London and the wider South East motorway network. PO postcodes across Portsmouth, Havant, Waterlooville, Gosport, and Fareham feature in Hampshire Constabulary vehicle crime data. The naval and defence sector presence in the Portsmouth area creates a high density of premium personal vehicles among the professional population.

Relay attack theft follows the same method across every UK region: criminals extend the key fob signal from inside the property to the vehicle on the driveway in under 60 seconds. The factory immobiliser is satisfied by the relayed signal exactly as it would be by a legitimate key. LockCar adds a physical relay break downstream of the entire CAN bus that remains open until a separate encrypted authentication is provided.

Ghost immobiliser versus LockCar in Portsmouth

The Autowatch Ghost uses the vehicle CAN bus to require a PIN sequence before engine start. It is an effective countermeasure against basic relay attacks. LockCar’s hardwired relay break operates outside the CAN bus entirely, providing protection against both relay attacks and CAN bus injection attacks that target the control channel.

For vehicles in higher-risk categories, fitting both a Ghost and a LockCar relay immobiliser provides the strongest available protection. Ghost stops relay attacks at the CAN bus level. LockCar stops any attack that manages to overcome or bypass the CAN bus layer. The two systems are complementary and can be installed at the same appointment.

LockCar installation does not interfere with an existing or new Ghost installation. Both systems operate independently. Full insurance documentation is provided with every LockCar installation.

LockCar coverage across Portsmouth

LockCar engineers cover all PO postcode districts across Portsmouth, Havant, Waterlooville, Gosport, Fareham, and the Isle of Wight. Same-day appointments are available across the Portsmouth region.

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LockCar IC3ST, £139

Relay immobiliser Portsmouth, proximity tag, app

Standalone relay immobiliser for Portsmouth vehicles. Encrypted proximity tag, independent of Ghost and factory keyless entry. Mobile fitting across PO postcodes, Portsmouth, Havant, Waterlooville, Gosport, Fareham.

LockCar IC3ST, £139

Standalone immobiliser, proximity tag, app

Encrypted proximity tag auto-disarms on approach. Independent of CAN bus. No MCU required. Mobile fitting UK-wide.