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Designing a Debit Card Processing System: PIN Authentication, Bank Integration & Real-Time Balance…

By Arvind Kumar · Published February 26, 2026 · 1 min read · Source: Fintech Tag
RegulationPayments
Designing a Debit Card Processing System: PIN Authentication, Bank Integration & Real-Time Balance…

How do debit card payments work? When a customer swipes their debit card at a POS terminal or uses it at an ATM, how does the system…

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