coincidental
IN 2017 I bought a 2 year old Citroen C4 with only one key. Timpsons said they could duplicate the key with a authorisation code from Citroen. When this came the car was booked in, for most people this would be a short drive straight there. For me it meant a ferry trip and turning the ignition on. On Trying to restart the car I got a Key Fob error warning and the car would not start.
This is too much of a coincidence for me. I believe there is some telemetry in the car at allows this.
From Citroen website -"Citroën Connected Services includes practical programmes such as Real Time Traffic and Telemaintenance which are FREE to activate for new car customers"
I think word has got out how to do this.