Ford has increased the number of its models which come with extra security features as standard to protect them from car thieves.

A security feature which disables keyless entry fobs when not in use to block illegal hacking has been added to the Ford Puma and Kuga as well as the Ford Mustang Mach-E electric vehicle which arrives this month.

Keyless entry fobs of all makes of cars have been targeted by thieves with “relay box” equipment, used to extend the signal from fobs in homes to unlock and start vehicles parked outside.

In 2019, Ford introduced the fob with sleep mode to its Fiesta and Focus models. Figures from security analysts Retainagroup has shown how thefts of the latest Fiesta, with the technology, have fallen by two-thirds compared with the number of previous Fiestas stolen.

A motion sensor inside Ford’s fobs detects when it has been stationary for longer than 40 seconds and triggers a sleep mode, which will not respond to attempts to hack its signal via a “relay box” or through the misuse of other specialist equipment.