E-Z Pass RFID Secretly Tracks Way More Than Tolls
An article in Forbes magazine discloses how EZ Pass, the RFID system used in many states to collect tolls, is being used by states to track you in other ways!
Read the full Forbes article here
While the EZ Pass agency claims the data is scrambled, I'd put the likelihood of at least a few government agencies using unscrambled data at 100%.