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It works without a DB as far as I know, and there are handful incidents where people knowingly blocked a connection to the payment system to charge the card wit
by lifthrasiir 8y ago
It works without a DB as far as I know, and there are handful incidents where people knowingly blocked a connection to the payment system to charge the card with no money spent. Primary security measures against fraudulent transport cards had been blacklisting, which seems to work well enough as there are not much hacked cards.