Denso said there was a breach related to its German operations.

Reports said the supplier, Kojima Industries Corp., was working to address an incident that blocked its network from communicating with Toyota's.

A misconfigured server appears to be responsible.

It's the latest evidence of how digitally connected cars open up new pathways for theft.

Honda IT personnel are still working the incident. Outside analysts suspect ransomware.

By placing three stickers over road markings, researchers caused the Tesla to move to the wrong side of the road.