He told the Telegraph he was so paranoid about the theft being repeated that he put the Faraday pouch inside a metal red box in a microwave at the back of his house. To make doubly sure, he also uses a traditional metal steering wheel lock.
Tech-savvy thieves can relay signals from car fobs kept in the house to hack their way in.
Car theft has soared since lockdown lifted, with data from the Metropolitan police showing a 16% rise in the year to June 2022.
Most cars that offer keyless entry are in the luxury market, which makes it attractive for thieves to get on top of the technology. Lexus, Land Rover and Mercedes use them, but they are also becoming more common in mid-range cars.
King wants manufacturers to give drivers the option to disable hi-tech fobs and return to simpler security that is harder to hack.
