Do the digital pay stations store any private information?
The machines store no cash because they don’t accept any cash. Also, as soon as you swipe your card into the machine, it will transmit all that data instantaneously, so your cards approved. The credit card information leaves the meter and it’s not retained in the meter at all. If someone were to break into a meter they would get no cash nor be able to retrieve any credit card information from the meter at all because the information goes out of the meter immediately.