Maestro Global Rules (PDF) - MasterCard

Glossary
Glossary
partial reversal
A reversal in which the original Transaction was approved for a greater amount
than was completed by the Acquirer, and the difference between the amount of
such original Transaction and the amount that was completed is reversed.
pass-through account
“Pass-through account” means an account for which the funds ultimately
come from another account, which is maintained by an entity other than the
institution that maintains the pass-through account. Pass-through accounts are
also commonly known as “sweep accounts” or “zero-balance accounts.”
payment gateway
The Acquirer system that receives messages via open systems from the
merchants, performs certain functions and acts as the bridge to the closed
systems used for normal card payment transactions.
payment system
System that accomplishes the transfer of money.
personal identification number (PIN)
The unique, confidential number assigned to, or selected by, a cardholder
to provide legal identification when used in an electronic funds transfer
environment.
physically secure device
A type of tamper-resistant security module that protects any cryptographic key
or PIN resident within the device against penetration attacks. Penetration of a
physically secure device will cause the automatic and immediate erasure of all
PINs, cryptographic keys, and all useful residue of PINs and keys contained
within the device. A device is considered to be a physically secure device only
when the device’s internal operation cannot be and has not been modified to
allow penetration. Also called a tamper-responsive device. See tamper-resistant
security module (TRSM).
PIN-based Transaction (PBT)
A Transaction verified by the use of a Cardholder’s PIN.
PIN block
The PIN and other information necessary to de-encrypt, re-encrypt, or verify
PIN information.
PIN entry device
A keyboard device attached to an electronic payment terminal that enables
the Cardholder to enter a PIN.
©1993–2012 MasterCard. Proprietary. All rights reserved.
E-10 9 November 2012 • Maestro Global Rules