MPS is also Payment Card Industry (PCI) compliant and must go through an independent audit to remain PCI compliant each year.
MPS just completed an end-to-end third party penetration test of both its software and actual hardware to verify that its solid versus hacking attempts, stealing hardware, and cracking open hardware.
As far as how credit cards work, the actual reader hardware encrypts the data and communicates to the payment gateway with a ‘token’. MPS never sees anything related to card numbers, which keeps it out of scope and helps us pass our audits. Our system also keeps owner info out of scope since that is done by municipal approved vendors.
MPS does not have access to anyone credit card information.