This toolbox talk equips UK fleet managers and drivers with practical, legally‑backed steps to protect company vehicles from keyless‑entry relay attacks. It explains the physics of signal amplification, recommends the use of BS EN 302 637‑2 certified Faraday pouches, and details how to maintain BS EN 50518 compliant immobilisers and BS EN 62676‑2 alarm systems. Guidance on secure parking, pre‑trip vehicle checks, real‑time tracking alerts, and swift incident reporting is included. The document references the Health and Safety at Work etc. Act 1974, the Theft Act 1968, the Road Traffic Act 1988 and the HSE vehicle safety guidance. Additional measures such as regular staff briefings on emerging keyless threats, integration of mobile app alerts for unauthorised entry attempts, and ensuring that all vehicle keys are logged in the central asset management system further strengthen security. Companies should also review insurance policies to confirm coverage for keyless entry theft and maintain records of all incidents for continuous improvement. Regular audits and driver training are essential to sustain robust protection. Additional monitoring of key usage trends and periodic review of emerging relay technologies ensure ongoing resilience. Regular quarterly reviews of incident data support continuous improvement and compliance verification. In the event of a successful relay attack, drivers must follow the emergency lock‑out procedure outlined in the company’s incident response plan, including contacting emergency services and securing the vehicle to prevent further risk. Periodic reviews of emerging keyless technologies and updates to company policies ensure that security measures remain current with industry best practice.