Digital Payments, Acquiring, and E-commerce Glossary
Welcome to the PayOk financial dictionary. As a Payment Institution regulated by the Bank of Spain, we have developed the most comprehensive resource on the payment ecosystem and current regulations.
This space is designed for industry professionals, e-commerce executives, and compliance managers to master the essential technical vocabulary needed to manage collections successfully and securely.
Why is technical knowledge a strategic advantage?
The digital payments sector is not only moving fast, but it is also subject to strict regulation. Understanding concepts related to acquiring and payment gateways is vital to:
Optimize Treasury: Make informed decisions about your company's collection infrastructure.
Ensure Compliance: Master the implications of the PSD2 directive and anti-money laundering protocols.
Shield Security: Improve customer trust by implementing standards such as PCI DSS.
What will you find in our Financial Dictionary?
Technical and Regulatory Definitions
Concepts explained simply yet rigorously: from the architecture of an API or the role of the Acquiring Bank, to the technical management of Chargebacks, the EMV standard, or KYC/KYB protocols. You can also view our Payment Methods Dictionary on our YouTube channel.
Technical Concepts
Definitions, API, PSD2
Strategic Advantages
Decisions, Training
Compliance and Security
KYC, PCI DSS, GDPR
A
Acquiring Bank
What is an Acquiring bank?
B
Bank of Spain
What is the Bank of Spain?
C
Credit card networks
What is a credit or debit card network?
D
De-risking
What is financial De-risking?
E
E-Wallet
What is an E-Wallet in a card payment process?
F
FATF
What is the FATF?
G
GDPR (General Data Protection Regulation)
What is the GDPR and how does it protect us?
I
IVR (Interactive Voice Response)
What is an IVR phone system?
K
KYC
What Is KYC and how does it prevent money laundering (AML)?
M
MCC
What is the MCC activity code?
O
Online fraud
What is online fraud?
P
PAN o Card number
What is the PAN or Primary account number on a card?
R
Rolling reserve
What Is a Rolling Reserve?
S
SSL/TLS
What is SSL? Definition and concept
T
Two-Factor Authentication (2FA)
What is Two-Factor Authentication (2FA)? Definition
V
Virtual POS Terminal
What is a virtual POS or iPOS?
W
Wire or bank transfer
What is a fast and secure wire transfer?
