Google takes self-driving cars offline to prevent hacking

Google has confirmed that it is to disconnect its fleet of self-driving cars from the internet unless absolutely necessary to prevent their technology falling prey to hackers, according to the chief executive of its driverless car program.
The dramatic move has been made possible by the fact that onboard computers can remain autonomous even when connections to cloud servers are down, enhancing both safety and cyber security at a stroke.
It is not possible to disconnect from the outside world ent