A Personal Identification Number (PIN) is a numeric credential used to authenticate a cardholder during payment transactions. It is commonly entered at an ATM or point-of-sale (POS) terminal before a transaction is authorized.
Although a PIN may appear to be just a short numeric code, protecting it requires multiple layers of security. From the moment a PIN is entered to its encryption, transmission, and processing, payment environments rely on secure PIN entry devices, cryptographic keys, encryption, access controls, and key management practices to prevent unauthorized disclosure or compromise.
This is where PCI PIN Security Requirements become important. They establish the controls organizations must follow to protect PINs, cryptographic keys, and the systems involved in PIN processing.
The infographic below breaks down the 33 PCI PIN Security Requirements across 7 control objectives, giving you a quick view of the controls that help secure the PIN environment.
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