ODBII and your friendly government (NOT)
For the record, New York State shares ALL the info on your ECU with Auto Insurers and the Tax Department.
Why, because NYS MONETIZED THE DATA and gets PAID for it by the insurers or through increased tax revenue.
Every car that has a required annual Vehicle Inspection and an OBDII port, sends the contents of the ECU to Albany.
That includes mileage, highest speed and acceleration/deceleration among other things like if the ECU has been re-programmed for better speed, lower economy Air/Fuel ratios etc.
You give up the right to keep that data private when you get a liscence.
And you think Google is bad.