Glossary
Card Scheme

Card Scheme

Card Scheme refers to a global or regional card network, such as Visa, Mastercard, American Express or domestic schemes, that sets the rules, standards and infrastructure enabling card payments.

GLOSSARY
What is a
Card Scheme

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Expiry Date (Card Expiry Date)

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

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What is a
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Zero-Auth (Zero-Amount Authorisation)

An authorisation request for a value of £0 used to validate a card before charging it. It confirms card validity without reserving funds.
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