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Merchant Service

Glossary - K

Merchant Services Terms Glossary

These terms occur frequently in both the merchant services industry and on our website.

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Glossary Terms

Key

When used in the context of encryption, a series of numbers which are used by an encryption algorithm to transform plaintext data into encrypted (ciphertext) data, and vice versa.

Keypad

A miniature keyboard or set of buttons for operating a credit card machine.

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