I don't think so. If you don't know how it moves, you can not read meaningful data (if it moves forward/backward). That's the whole point of that counter measur

I don't think so. If you don't know how it moves, you can not read meaningful data (if it moves forward/backward). That's the whole point of that counter measure. If they [the ATMs] do this and can read the card, then they can also check that the measured movement matches what the controller sent to the motor driver. Heck, depending on the driver they could just let it measure back EMF (e.g. some Trinamic stepper drivers can do that).