Glossary
HPP (Hosted Payment Page)

HPP (Hosted Payment Page)

HPP (Hosted Payment Page) is a payment page hosted by a third-party provider. Customers are redirected to this page to enter their payment details, helping reduce PCI DSS scope for the merchant.

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Expiry Date (Card Expiry Date)

Expiry Date is the month and year printed on a payment card, indicating when the card becomes invalid and must be replaced.

ZKP (Zero-Knowledge Proof)

ZKP is a cryptographic method that allows one party to prove knowledge of information without revealing the information itself, used in advanced authentication and privacy-preserving payment solutions.

ZIP (Buy Now, Pay Later Provider)

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Zeroisation

The secure deletion of cryptographic keys and sensitive data from hardware security modules (HSMs) or other secure devices to prevent unauthorised use.

Zero-Rating

Refers to goods or services that are taxed at a 0% VAT rate, affecting invoice and payment calculations.

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