+**Payment Processing** is the digital backbone that enables the transfer of funds between buyers and sellers. It securely handles a financial [Transaction](/wiki/transaction), from authorization to settlement, often involving a [Credit Card](/wiki/credit_card) or other payment instruments. This essential service ensures that money moves reliably across various commercial channels.
+## See also
+- [E-commerce](/wiki/e-commerce)
+- [Fintech](/wiki/fintech)
+- [Security](/wiki/security)
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